代数示例

${(2 x + \frac{1}{x^{3}})}^{8}$

解题步骤 1

帕斯卡三角形可以显示为：

$1$

$1 - 1$

$1 - 2 - 1$

$\dots$

$1 - 6 - 15 - 20 - 15 - 6 - 1$

$1 - 7 - 21 - 35 - 35 - 21 - 7 - 1$

$1 - 8 - 28 - 56 - 70 - 56 - 28 - 8 - 1$

通过取指数 $n$ 并和 $1$ 相加，该三角形可用于计算 ${(a + b)}^{n}$ 的展开系数。这些系数将对应三角形的直线 $n + 1$ 。因为 ${(2 x + \frac{1}{x^{3}})}^{8}$ , $n = 8$ ，所以展开系数将对应直线 $9$ 。

解题步骤 2

展开式符合这个规则 ${(a + b)}^{n} = c_{0} a^{n} b^{0} + c_{1} a^{n - 1} b^{1} + c_{n - 1} a^{1} b^{n - 1} + c_{n} a^{0} b^{n}$ 。从三角形可以得出它的系数值为 $1 - 8 - 28 - 56 - 70 - 56 - 28 - 8 - 1$ 。

$1 a^{8} b^{0} + 8 a^{7} b + 28 a^{6} b^{2} + 56 a^{5} b^{3} + 70 a^{4} b^{4} + 56 a^{3} b^{5} + 28 a^{2} b^{6} + 8 a b^{7} + 1 a^{0} b^{8}$

解题步骤 3

将 $a$ $2 x$ 和 $b$ $\frac{1}{x^{3}}$ 的实际值代入表达式。

$1 {(2 x)}^{8} {(\frac{1}{x^{3}})}^{0} + 8 {(2 x)}^{7} {(\frac{1}{x^{3}})}^{1} + 28 {(2 x)}^{6} {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4

化简每一项。

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解题步骤 4.1

将 ${(2 x)}^{8}$ 乘以 $1$ 。

${(2 x)}^{8} {(\frac{1}{x^{3}})}^{0} + 8 {(2 x)}^{7} {(\frac{1}{x^{3}})}^{1} + 28 {(2 x)}^{6} {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.2

对 $2 x$ 运用乘积法则。

$2^{8} x^{8} {(\frac{1}{x^{3}})}^{0} + 8 {(2 x)}^{7} {(\frac{1}{x^{3}})}^{1} + 28 {(2 x)}^{6} {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.3

对 $2$ 进行 $8$ 次方运算。

$256 x^{8} {(\frac{1}{x^{3}})}^{0} + 8 {(2 x)}^{7} {(\frac{1}{x^{3}})}^{1} + 28 {(2 x)}^{6} {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.4

对 $\frac{1}{x^{3}}$ 运用乘积法则。

$256 x^{8} \frac{1^{0}}{{(x^{3})}^{0}} + 8 {(2 x)}^{7} {(\frac{1}{x^{3}})}^{1} + 28 {(2 x)}^{6} {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.5

任何数的 $0$ 次方都是 $1$ 。

$256 x^{8} \frac{1}{{(x^{3})}^{0}} + 8 {(2 x)}^{7} {(\frac{1}{x^{3}})}^{1} + 28 {(2 x)}^{6} {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.6

化简分母。

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解题步骤 4.6.1

将 ${(x^{3})}^{0}$ 中的指数相乘。

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解题步骤 4.6.1.1

运用幂法则并将指数相乘， ${(a^{m})}^{n} = a^{m n}$ 。

$256 x^{8} \frac{1}{x^{3 \cdot 0}} + 8 {(2 x)}^{7} {(\frac{1}{x^{3}})}^{1} + 28 {(2 x)}^{6} {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.6.1.2

将 $3$ 乘以 $0$ 。

$256 x^{8} \frac{1}{x^{0}} + 8 {(2 x)}^{7} {(\frac{1}{x^{3}})}^{1} + 28 {(2 x)}^{6} {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.6.2

任何数的 $0$ 次方都是 $1$ 。

$256 x^{8} \frac{1}{1} + 8 {(2 x)}^{7} {(\frac{1}{x^{3}})}^{1} + 28 {(2 x)}^{6} {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.7

用 $1$ 除以 $1$ 。

$256 x^{8} \cdot 1 + 8 {(2 x)}^{7} {(\frac{1}{x^{3}})}^{1} + 28 {(2 x)}^{6} {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.8

将 $256$ 乘以 $1$ 。

$256 x^{8} + 8 {(2 x)}^{7} {(\frac{1}{x^{3}})}^{1} + 28 {(2 x)}^{6} {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.9

对 $2 x$ 运用乘积法则。

$256 x^{8} + 8 (2^{7} x^{7}) {(\frac{1}{x^{3}})}^{1} + 28 {(2 x)}^{6} {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.10

对 $2$ 进行 $7$ 次方运算。

$256 x^{8} + 8 (128 x^{7}) {(\frac{1}{x^{3}})}^{1} + 28 {(2 x)}^{6} {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.11

将 $128$ 乘以 $8$ 。

$256 x^{8} + 1024 x^{7} {(\frac{1}{x^{3}})}^{1} + 28 {(2 x)}^{6} {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.12

化简。

$256 x^{8} + 1024 x^{7} \frac{1}{x^{3}} + 28 {(2 x)}^{6} {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.13

约去 $x^{3}$ 的公因数。

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解题步骤 4.13.1

从 $1024 x^{7}$ 中分解出因数 $x^{3}$ 。

$256 x^{8} + x^{3} (1024 x^{4}) \frac{1}{x^{3}} + 28 {(2 x)}^{6} {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.13.2

约去公因数。

解题步骤 4.13.3

重写表达式。

$256 x^{8} + 1024 x^{4} + 28 {(2 x)}^{6} {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.14

对 $2 x$ 运用乘积法则。

$256 x^{8} + 1024 x^{4} + 28 (2^{6} x^{6}) {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.15

对 $2$ 进行 $6$ 次方运算。

$256 x^{8} + 1024 x^{4} + 28 (64 x^{6}) {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.16

将 $64$ 乘以 $28$ 。

$256 x^{8} + 1024 x^{4} + 1792 x^{6} {(\frac{1}{x^{3}})}^{2} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.17

对 $\frac{1}{x^{3}}$ 运用乘积法则。

$256 x^{8} + 1024 x^{4} + 1792 x^{6} \frac{1^{2}}{{(x^{3})}^{2}} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.18

一的任意次幂都为一。

$256 x^{8} + 1024 x^{4} + 1792 x^{6} \frac{1}{{(x^{3})}^{2}} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.19

将 ${(x^{3})}^{2}$ 中的指数相乘。

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解题步骤 4.19.1

运用幂法则并将指数相乘， ${(a^{m})}^{n} = a^{m n}$ 。

$256 x^{8} + 1024 x^{4} + 1792 x^{6} \frac{1}{x^{3 \cdot 2}} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.19.2

将 $3$ 乘以 $2$ 。

$256 x^{8} + 1024 x^{4} + 1792 x^{6} \frac{1}{x^{6}} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.20

约去 $x^{6}$ 的公因数。

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解题步骤 4.20.1

从 $1792 x^{6}$ 中分解出因数 $x^{6}$ 。

$256 x^{8} + 1024 x^{4} + x^{6} \cdot 1792 \frac{1}{x^{6}} + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.20.2

约去公因数。

解题步骤 4.20.3

重写表达式。

$256 x^{8} + 1024 x^{4} + 1792 + 56 {(2 x)}^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.21

对 $2 x$ 运用乘积法则。

$256 x^{8} + 1024 x^{4} + 1792 + 56 (2^{5} x^{5}) {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.22

对 $2$ 进行 $5$ 次方运算。

$256 x^{8} + 1024 x^{4} + 1792 + 56 (32 x^{5}) {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.23

将 $32$ 乘以 $56$ 。

$256 x^{8} + 1024 x^{4} + 1792 + 1792 x^{5} {(\frac{1}{x^{3}})}^{3} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.24

对 $\frac{1}{x^{3}}$ 运用乘积法则。

$256 x^{8} + 1024 x^{4} + 1792 + 1792 x^{5} \frac{1^{3}}{{(x^{3})}^{3}} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.25

一的任意次幂都为一。

$256 x^{8} + 1024 x^{4} + 1792 + 1792 x^{5} \frac{1}{{(x^{3})}^{3}} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.26

将 ${(x^{3})}^{3}$ 中的指数相乘。

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解题步骤 4.26.1

运用幂法则并将指数相乘， ${(a^{m})}^{n} = a^{m n}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + 1792 x^{5} \frac{1}{x^{3 \cdot 3}} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.26.2

将 $3$ 乘以 $3$ 。

$256 x^{8} + 1024 x^{4} + 1792 + 1792 x^{5} \frac{1}{x^{9}} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.27

约去 $x^{5}$ 的公因数。

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解题步骤 4.27.1

从 $1792 x^{5}$ 中分解出因数 $x^{5}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + x^{5} \cdot 1792 \frac{1}{x^{9}} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.27.2

从 $x^{9}$ 中分解出因数 $x^{5}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + x^{5} \cdot 1792 \frac{1}{x^{5} x^{4}} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.27.3

约去公因数。

解题步骤 4.27.4

重写表达式。

$256 x^{8} + 1024 x^{4} + 1792 + 1792 \frac{1}{x^{4}} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.28

组合 $1792$ 和 $\frac{1}{x^{4}}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + 70 {(2 x)}^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.29

对 $2 x$ 运用乘积法则。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + 70 (2^{4} x^{4}) {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.30

对 $2$ 进行 $4$ 次方运算。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + 70 (16 x^{4}) {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.31

将 $16$ 乘以 $70$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + 1120 x^{4} {(\frac{1}{x^{3}})}^{4} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.32

对 $\frac{1}{x^{3}}$ 运用乘积法则。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + 1120 x^{4} \frac{1^{4}}{{(x^{3})}^{4}} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.33

一的任意次幂都为一。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + 1120 x^{4} \frac{1}{{(x^{3})}^{4}} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.34

将 ${(x^{3})}^{4}$ 中的指数相乘。

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解题步骤 4.34.1

运用幂法则并将指数相乘， ${(a^{m})}^{n} = a^{m n}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + 1120 x^{4} \frac{1}{x^{3 \cdot 4}} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.34.2

将 $3$ 乘以 $4$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + 1120 x^{4} \frac{1}{x^{12}} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.35

约去 $x^{4}$ 的公因数。

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解题步骤 4.35.1

从 $1120 x^{4}$ 中分解出因数 $x^{4}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + x^{4} \cdot 1120 \frac{1}{x^{12}} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.35.2

从 $x^{12}$ 中分解出因数 $x^{4}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + x^{4} \cdot 1120 \frac{1}{x^{4} x^{8}} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.35.3

约去公因数。

解题步骤 4.35.4

重写表达式。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + 1120 \frac{1}{x^{8}} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.36

组合 $1120$ 和 $\frac{1}{x^{8}}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + 56 {(2 x)}^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.37

对 $2 x$ 运用乘积法则。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + 56 (2^{3} x^{3}) {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.38

对 $2$ 进行 $3$ 次方运算。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + 56 (8 x^{3}) {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.39

将 $8$ 乘以 $56$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + 448 x^{3} {(\frac{1}{x^{3}})}^{5} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.40

对 $\frac{1}{x^{3}}$ 运用乘积法则。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + 448 x^{3} \frac{1^{5}}{{(x^{3})}^{5}} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.41

一的任意次幂都为一。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + 448 x^{3} \frac{1}{{(x^{3})}^{5}} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.42

将 ${(x^{3})}^{5}$ 中的指数相乘。

点击获取更多步骤...

解题步骤 4.42.1

运用幂法则并将指数相乘， ${(a^{m})}^{n} = a^{m n}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + 448 x^{3} \frac{1}{x^{3 \cdot 5}} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.42.2

将 $3$ 乘以 $5$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + 448 x^{3} \frac{1}{x^{15}} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.43

约去 $x^{3}$ 的公因数。

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解题步骤 4.43.1

从 $448 x^{3}$ 中分解出因数 $x^{3}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + x^{3} \cdot 448 \frac{1}{x^{15}} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.43.2

从 $x^{15}$ 中分解出因数 $x^{3}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + x^{3} \cdot 448 \frac{1}{x^{3} x^{12}} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.43.3

约去公因数。

解题步骤 4.43.4

重写表达式。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + 448 \frac{1}{x^{12}} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.44

组合 $448$ 和 $\frac{1}{x^{12}}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + 28 {(2 x)}^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.45

对 $2 x$ 运用乘积法则。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + 28 (2^{2} x^{2}) {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.46

对 $2$ 进行 $2$ 次方运算。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + 28 (4 x^{2}) {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.47

将 $4$ 乘以 $28$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + 112 x^{2} {(\frac{1}{x^{3}})}^{6} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.48

对 $\frac{1}{x^{3}}$ 运用乘积法则。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + 112 x^{2} \frac{1^{6}}{{(x^{3})}^{6}} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.49

一的任意次幂都为一。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + 112 x^{2} \frac{1}{{(x^{3})}^{6}} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.50

将 ${(x^{3})}^{6}$ 中的指数相乘。

点击获取更多步骤...

解题步骤 4.50.1

运用幂法则并将指数相乘， ${(a^{m})}^{n} = a^{m n}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + 112 x^{2} \frac{1}{x^{3 \cdot 6}} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.50.2

将 $3$ 乘以 $6$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + 112 x^{2} \frac{1}{x^{18}} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.51

约去 $x^{2}$ 的公因数。

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解题步骤 4.51.1

从 $112 x^{2}$ 中分解出因数 $x^{2}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + x^{2} \cdot 112 \frac{1}{x^{18}} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.51.2

从 $x^{18}$ 中分解出因数 $x^{2}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + x^{2} \cdot 112 \frac{1}{x^{2} x^{16}} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.51.3

约去公因数。

解题步骤 4.51.4

重写表达式。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + 112 \frac{1}{x^{16}} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.52

组合 $112$ 和 $\frac{1}{x^{16}}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + 8 {(2 x)}^{1} {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.53

化简。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + 8 (2 x) {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.54

将 $2$ 乘以 $8$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + 16 x {(\frac{1}{x^{3}})}^{7} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.55

对 $\frac{1}{x^{3}}$ 运用乘积法则。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + 16 x \frac{1^{7}}{{(x^{3})}^{7}} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.56

一的任意次幂都为一。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + 16 x \frac{1}{{(x^{3})}^{7}} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.57

将 ${(x^{3})}^{7}$ 中的指数相乘。

点击获取更多步骤...

解题步骤 4.57.1

运用幂法则并将指数相乘， ${(a^{m})}^{n} = a^{m n}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + 16 x \frac{1}{x^{3 \cdot 7}} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.57.2

将 $3$ 乘以 $7$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + 16 x \frac{1}{x^{21}} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.58

约去 $x$ 的公因数。

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解题步骤 4.58.1

从 $16 x$ 中分解出因数 $x$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + x \cdot 16 \frac{1}{x^{21}} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.58.2

从 $x^{21}$ 中分解出因数 $x$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + x \cdot 16 \frac{1}{x \cdot x^{20}} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.58.3

约去公因数。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + x \cdot 16 \frac{1}{x \cdot x^{20}} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.58.4

重写表达式。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + 16 \frac{1}{x^{20}} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.59

组合 $16$ 和 $\frac{1}{x^{20}}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + \frac{16}{x^{20}} + 1 {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.60

将 ${(2 x)}^{0}$ 乘以 $1$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + \frac{16}{x^{20}} + {(2 x)}^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.61

对 $2 x$ 运用乘积法则。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + \frac{16}{x^{20}} + 2^{0} x^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.62

任何数的 $0$ 次方都是 $1$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + \frac{16}{x^{20}} + 1 x^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.63

将 $x^{0}$ 乘以 $1$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + \frac{16}{x^{20}} + x^{0} {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.64

任何数的 $0$ 次方都是 $1$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + \frac{16}{x^{20}} + 1 {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.65

将 ${(\frac{1}{x^{3}})}^{8}$ 乘以 $1$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + \frac{16}{x^{20}} + {(\frac{1}{x^{3}})}^{8}$

解题步骤 4.66

对 $\frac{1}{x^{3}}$ 运用乘积法则。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + \frac{16}{x^{20}} + \frac{1^{8}}{{(x^{3})}^{8}}$

解题步骤 4.67

一的任意次幂都为一。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + \frac{16}{x^{20}} + \frac{1}{{(x^{3})}^{8}}$

解题步骤 4.68

将 ${(x^{3})}^{8}$ 中的指数相乘。

点击获取更多步骤...

解题步骤 4.68.1

运用幂法则并将指数相乘， ${(a^{m})}^{n} = a^{m n}$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + \frac{16}{x^{20}} + \frac{1}{x^{3 \cdot 8}}$

解题步骤 4.68.2

将 $3$ 乘以 $8$ 。

$256 x^{8} + 1024 x^{4} + 1792 + \frac{1792}{x^{4}} + \frac{1120}{x^{8}} + \frac{448}{x^{12}} + \frac{112}{x^{16}} + \frac{16}{x^{20}} + \frac{1}{x^{24}}$

代数 示例

代数示例