Algebra Examples

${(x - y^{4})}^{5}$

Step 1

Use the Binomial Theorem.

$x^{5} + 5 x^{4} (- y^{4}) + 10 x^{3} {(- y^{4})}^{2} + 10 x^{2} {(- y^{4})}^{3} + 5 x {(- y^{4})}^{4} + {(- y^{4})}^{5}$

Step 2

Simplify each term.

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Step 2.1

Rewrite using the commutative property of multiplication.

$x^{5} + 5 \cdot - 1 x^{4} y^{4} + 10 x^{3} {(- y^{4})}^{2} + 10 x^{2} {(- y^{4})}^{3} + 5 x {(- y^{4})}^{4} + {(- y^{4})}^{5}$

Step 2.2

Multiply $5$ by $- 1$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} {(- y^{4})}^{2} + 10 x^{2} {(- y^{4})}^{3} + 5 x {(- y^{4})}^{4} + {(- y^{4})}^{5}$

Step 2.3

Apply the product rule to $- y^{4}$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} ({(- 1)}^{2} {(y^{4})}^{2}) + 10 x^{2} {(- y^{4})}^{3} + 5 x {(- y^{4})}^{4} + {(- y^{4})}^{5}$

Step 2.4

Rewrite using the commutative property of multiplication.

$x^{5} - 5 x^{4} y^{4} + 10 \cdot {(- 1)}^{2} x^{3} {(y^{4})}^{2} + 10 x^{2} {(- y^{4})}^{3} + 5 x {(- y^{4})}^{4} + {(- y^{4})}^{5}$

Step 2.5

Raise $- 1$ to the power of $2$ .

$x^{5} - 5 x^{4} y^{4} + 10 \cdot 1 x^{3} {(y^{4})}^{2} + 10 x^{2} {(- y^{4})}^{3} + 5 x {(- y^{4})}^{4} + {(- y^{4})}^{5}$

Step 2.6

Multiply $10$ by $1$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} {(y^{4})}^{2} + 10 x^{2} {(- y^{4})}^{3} + 5 x {(- y^{4})}^{4} + {(- y^{4})}^{5}$

Step 2.7

Multiply the exponents in ${(y^{4})}^{2}$ .

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Step 2.7.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} y^{4 \cdot 2} + 10 x^{2} {(- y^{4})}^{3} + 5 x {(- y^{4})}^{4} + {(- y^{4})}^{5}$

Step 2.7.2

Multiply $4$ by $2$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} y^{8} + 10 x^{2} {(- y^{4})}^{3} + 5 x {(- y^{4})}^{4} + {(- y^{4})}^{5}$

Step 2.8

Apply the product rule to $- y^{4}$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} y^{8} + 10 x^{2} ({(- 1)}^{3} {(y^{4})}^{3}) + 5 x {(- y^{4})}^{4} + {(- y^{4})}^{5}$

Step 2.9

Rewrite using the commutative property of multiplication.

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} y^{8} + 10 \cdot {(- 1)}^{3} x^{2} {(y^{4})}^{3} + 5 x {(- y^{4})}^{4} + {(- y^{4})}^{5}$

Step 2.10

Raise $- 1$ to the power of $3$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} y^{8} + 10 \cdot - 1 x^{2} {(y^{4})}^{3} + 5 x {(- y^{4})}^{4} + {(- y^{4})}^{5}$

Step 2.11

Multiply $10$ by $- 1$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} y^{8} - 10 x^{2} {(y^{4})}^{3} + 5 x {(- y^{4})}^{4} + {(- y^{4})}^{5}$

Step 2.12

Multiply the exponents in ${(y^{4})}^{3}$ .

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Step 2.12.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} y^{8} - 10 x^{2} y^{4 \cdot 3} + 5 x {(- y^{4})}^{4} + {(- y^{4})}^{5}$

Step 2.12.2

Multiply $4$ by $3$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} y^{8} - 10 x^{2} y^{12} + 5 x {(- y^{4})}^{4} + {(- y^{4})}^{5}$

Step 2.13

Apply the product rule to $- y^{4}$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} y^{8} - 10 x^{2} y^{12} + 5 x ({(- 1)}^{4} {(y^{4})}^{4}) + {(- y^{4})}^{5}$

Step 2.14

Rewrite using the commutative property of multiplication.

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} y^{8} - 10 x^{2} y^{12} + 5 \cdot {(- 1)}^{4} x {(y^{4})}^{4} + {(- y^{4})}^{5}$

Step 2.15

Raise $- 1$ to the power of $4$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} y^{8} - 10 x^{2} y^{12} + 5 \cdot 1 x {(y^{4})}^{4} + {(- y^{4})}^{5}$

Step 2.16

Multiply $5$ by $1$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} y^{8} - 10 x^{2} y^{12} + 5 x {(y^{4})}^{4} + {(- y^{4})}^{5}$

Step 2.17

Multiply the exponents in ${(y^{4})}^{4}$ .

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Step 2.17.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} y^{8} - 10 x^{2} y^{12} + 5 x y^{4 \cdot 4} + {(- y^{4})}^{5}$

Step 2.17.2

Multiply $4$ by $4$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} y^{8} - 10 x^{2} y^{12} + 5 x y^{16} + {(- y^{4})}^{5}$

Step 2.18

Apply the product rule to $- y^{4}$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} y^{8} - 10 x^{2} y^{12} + 5 x y^{16} + {(- 1)}^{5} {(y^{4})}^{5}$

Step 2.19

Raise $- 1$ to the power of $5$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} y^{8} - 10 x^{2} y^{12} + 5 x y^{16} - {(y^{4})}^{5}$

Step 2.20

Multiply the exponents in ${(y^{4})}^{5}$ .

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Step 2.20.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} y^{8} - 10 x^{2} y^{12} + 5 x y^{16} - y^{4 \cdot 5}$

Step 2.20.2

Multiply $4$ by $5$ .

$x^{5} - 5 x^{4} y^{4} + 10 x^{3} y^{8} - 10 x^{2} y^{12} + 5 x y^{16} - y^{20}$