Algebra Examples

${(\sqrt{2} x + \frac{1}{2} y)}^{4}$

Step 1

Combine $\frac{1}{2}$ and $y$ .

${(\sqrt{2} x + \frac{y}{2})}^{4}$

Step 2

Use the Binomial Theorem.

${(\sqrt{2} x)}^{4} + 4 {(\sqrt{2} x)}^{3} \frac{y}{2} + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3

Simplify each term.

Tap for more steps...

Step 3.1

Apply the product rule to $\sqrt{2} x$ .

${\sqrt{2}}^{4} x^{4} + 4 {(\sqrt{2} x)}^{3} \frac{y}{2} + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.2

Rewrite ${\sqrt{2}}^{4}$ as $2^{2}$ .

Tap for more steps...

Step 3.2.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{2}$ as $2^{\frac{1}{2}}$ .

${(2^{\frac{1}{2}})}^{4} x^{4} + 4 {(\sqrt{2} x)}^{3} \frac{y}{2} + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.2.2

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

$2^{\frac{1}{2} \cdot 4} x^{4} + 4 {(\sqrt{2} x)}^{3} \frac{y}{2} + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.2.3

Combine $\frac{1}{2}$ and $4$ .

$2^{\frac{4}{2}} x^{4} + 4 {(\sqrt{2} x)}^{3} \frac{y}{2} + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.2.4

Cancel the common factor of $4$ and $2$ .

Tap for more steps...

Step 3.2.4.1

Factor $2$ out of $4$ .

$2^{\frac{2 \cdot 2}{2}} x^{4} + 4 {(\sqrt{2} x)}^{3} \frac{y}{2} + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.2.4.2

Cancel the common factors.

Tap for more steps...

Step 3.2.4.2.1

Factor $2$ out of $2$ .

$2^{\frac{2 \cdot 2}{2 (1)}} x^{4} + 4 {(\sqrt{2} x)}^{3} \frac{y}{2} + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.2.4.2.2

Cancel the common factor.

$2^{\frac{2 \cdot 2}{2 \cdot 1}} x^{4} + 4 {(\sqrt{2} x)}^{3} \frac{y}{2} + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.2.4.2.3

Rewrite the expression.

$2^{\frac{2}{1}} x^{4} + 4 {(\sqrt{2} x)}^{3} \frac{y}{2} + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.2.4.2.4

Divide $2$ by $1$ .

$2^{2} x^{4} + 4 {(\sqrt{2} x)}^{3} \frac{y}{2} + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.3

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

$4 x^{4} + 4 {(\sqrt{2} x)}^{3} \frac{y}{2} + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.4

Cancel the common factor of $2$ .

Tap for more steps...

Step 3.4.1

Factor $2$ out of $4 {(\sqrt{2} x)}^{3}$ .

$4 x^{4} + 2 (2 {(\sqrt{2} x)}^{3}) \frac{y}{2} + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.4.2

Cancel the common factor.

$4 x^{4} + 2 (2 {(\sqrt{2} x)}^{3}) \frac{y}{2} + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.4.3

Rewrite the expression.

$4 x^{4} + 2 {(\sqrt{2} x)}^{3} y + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.5

Apply the product rule to $\sqrt{2} x$ .

$4 x^{4} + 2 ({\sqrt{2}}^{3} x^{3}) y + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.6

Rewrite ${\sqrt{2}}^{3}$ as $\sqrt{2^{3}}$ .

$4 x^{4} + 2 (\sqrt{2^{3}} x^{3}) y + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.7

Raise $2$ to the power of $3$ .

$4 x^{4} + 2 (\sqrt{8} x^{3}) y + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.8

Rewrite $8$ as $2^{2} \cdot 2$ .

Tap for more steps...

Step 3.8.1

Factor $4$ out of $8$ .

$4 x^{4} + 2 (\sqrt{4 (2)} x^{3}) y + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.8.2

Rewrite $4$ as $2^{2}$ .

$4 x^{4} + 2 (\sqrt{2^{2} \cdot 2} x^{3}) y + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.9

Pull terms out from under the radical.

$4 x^{4} + 2 (2 \sqrt{2} x^{3}) y + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.10

Multiply $2$ by $2$ .

$4 x^{4} + 4 (\sqrt{2} x^{3}) y + 6 {(\sqrt{2} x)}^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.11

Apply the product rule to $\sqrt{2} x$ .

$4 x^{4} + 4 \sqrt{2} x^{3} y + 6 ({\sqrt{2}}^{2} x^{2}) {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.12

Rewrite ${\sqrt{2}}^{2}$ as $2$ .

Tap for more steps...

Step 3.12.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{2}$ as $2^{\frac{1}{2}}$ .

$4 x^{4} + 4 \sqrt{2} x^{3} y + 6 ({(2^{\frac{1}{2}})}^{2} x^{2}) {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.12.2

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

$4 x^{4} + 4 \sqrt{2} x^{3} y + 6 (2^{\frac{1}{2} \cdot 2} x^{2}) {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.12.3

Combine $\frac{1}{2}$ and $2$ .

$4 x^{4} + 4 \sqrt{2} x^{3} y + 6 (2^{\frac{2}{2}} x^{2}) {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.12.4

Cancel the common factor of $2$ .

Tap for more steps...

Step 3.12.4.1

Cancel the common factor.

$4 x^{4} + 4 \sqrt{2} x^{3} y + 6 (2^{\frac{2}{2}} x^{2}) {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.12.4.2

Rewrite the expression.

$4 x^{4} + 4 \sqrt{2} x^{3} y + 6 (2^{1} x^{2}) {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.12.5

Evaluate the exponent.

$4 x^{4} + 4 \sqrt{2} x^{3} y + 6 (2 x^{2}) {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.13

Multiply $2$ by $6$ .

$4 x^{4} + 4 \sqrt{2} x^{3} y + 12 x^{2} {(\frac{y}{2})}^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.14

Apply the product rule to $\frac{y}{2}$ .

$4 x^{4} + 4 \sqrt{2} x^{3} y + 12 x^{2} \frac{y^{2}}{2^{2}} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.15

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

$4 x^{4} + 4 \sqrt{2} x^{3} y + 12 x^{2} \frac{y^{2}}{4} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.16

Cancel the common factor of $4$ .

Tap for more steps...

Step 3.16.1

Factor $4$ out of $12 x^{2}$ .

$4 x^{4} + 4 \sqrt{2} x^{3} y + 4 (3 x^{2}) \frac{y^{2}}{4} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.16.2

Cancel the common factor.

$4 x^{4} + 4 \sqrt{2} x^{3} y + 4 (3 x^{2}) \frac{y^{2}}{4} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.16.3

Rewrite the expression.

$4 x^{4} + 4 \sqrt{2} x^{3} y + 3 x^{2} y^{2} + 4 (\sqrt{2} x) {(\frac{y}{2})}^{3} + {(\frac{y}{2})}^{4}$

Step 3.17

Apply the product rule to $\frac{y}{2}$ .

$4 x^{4} + 4 \sqrt{2} x^{3} y + 3 x^{2} y^{2} + 4 \sqrt{2} x \frac{y^{3}}{2^{3}} + {(\frac{y}{2})}^{4}$

Step 3.18

Raise $2$ to the power of $3$ .

$4 x^{4} + 4 \sqrt{2} x^{3} y + 3 x^{2} y^{2} + 4 \sqrt{2} x \frac{y^{3}}{8} + {(\frac{y}{2})}^{4}$

Step 3.19

Cancel the common factor of $4$ .

Tap for more steps...

Step 3.19.1

Factor $4$ out of $4 \sqrt{2} x$ .

$4 x^{4} + 4 \sqrt{2} x^{3} y + 3 x^{2} y^{2} + 4 (\sqrt{2} x) \frac{y^{3}}{8} + {(\frac{y}{2})}^{4}$

Step 3.19.2

Factor $4$ out of $8$ .

$4 x^{4} + 4 \sqrt{2} x^{3} y + 3 x^{2} y^{2} + 4 (\sqrt{2} x) \frac{y^{3}}{4 (2)} + {(\frac{y}{2})}^{4}$

Step 3.19.3

Cancel the common factor.

$4 x^{4} + 4 \sqrt{2} x^{3} y + 3 x^{2} y^{2} + 4 (\sqrt{2} x) \frac{y^{3}}{4 \cdot 2} + {(\frac{y}{2})}^{4}$

Step 3.19.4

Rewrite the expression.

$4 x^{4} + 4 \sqrt{2} x^{3} y + 3 x^{2} y^{2} + \sqrt{2} x \frac{y^{3}}{2} + {(\frac{y}{2})}^{4}$

Step 3.20

Combine $\sqrt{2}$ and $\frac{y^{3}}{2}$ .

$4 x^{4} + 4 \sqrt{2} x^{3} y + 3 x^{2} y^{2} + x \frac{\sqrt{2} y^{3}}{2} + {(\frac{y}{2})}^{4}$

Step 3.21

Combine $x$ and $\frac{\sqrt{2} y^{3}}{2}$ .

$4 x^{4} + 4 \sqrt{2} x^{3} y + 3 x^{2} y^{2} + \frac{x (\sqrt{2} y^{3})}{2} + {(\frac{y}{2})}^{4}$

Step 3.22

Apply the product rule to $\frac{y}{2}$ .

$4 x^{4} + 4 \sqrt{2} x^{3} y + 3 x^{2} y^{2} + \frac{x \sqrt{2} y^{3}}{2} + \frac{y^{4}}{2^{4}}$

Step 3.23

Raise $2$ to the power of $4$ .

$4 x^{4} + 4 \sqrt{2} x^{3} y + 3 x^{2} y^{2} + \frac{x \sqrt{2} y^{3}}{2} + \frac{y^{4}}{16}$