Simplify square root of 8x* square root of 2x

$\sqrt{8 x} \cdot \sqrt{2 x}$

Step 1

Rewrite $8 x$ as $2^{2} \cdot (2 x)$ .

Factor $4$ out of $8$ .

$\sqrt{4 (2) x} \cdot \sqrt{2 x}$

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

$\sqrt{2^{2} \cdot 2 x} \cdot \sqrt{2 x}$

Add parentheses.

$\sqrt{2^{2} \cdot (2 x)} \cdot \sqrt{2 x}$

Step 2

Pull terms out from under the radical.

$2 \sqrt{2 x} \cdot \sqrt{2 x}$

Step 3

Multiply $2 \sqrt{2 x} \sqrt{2 x}$ .

Raise $\sqrt{2 x}$ to the power of $1$ .

$2 ({\sqrt{2 x}}^{1} \sqrt{2 x})$

Raise $\sqrt{2 x}$ to the power of $1$ .

$2 ({\sqrt{2 x}}^{1} {\sqrt{2 x}}^{1})$

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$2 {\sqrt{2 x}}^{1 + 1}$

Add $1$ and $1$ .

$2 {\sqrt{2 x}}^{2}$

Step 4

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

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

$2 {({(2 x)}^{\frac{1}{2}})}^{2}$

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

$2 {(2 x)}^{\frac{1}{2} \cdot 2}$

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

$2 {(2 x)}^{\frac{2}{2}}$

Cancel the common factor of $2$ .

Cancel the common factor.

$2 {(2 x)}^{\frac{2}{2}}$

Rewrite the expression.

$2 {(2 x)}^{1}$

Simplify.

$2 (2 x)$

Step 5

Multiply $2$ by $2$ .

$4 x$