Algebra Examples

$4 x^{3} \sqrt{64 x^{5}}$

Step 1

Rewrite $64 x^{5}$ as ${(8 x^{2})}^{2} x$ .

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Step 1.1

Rewrite $64$ as $8^{2}$ .

$4 x^{3} \sqrt{8^{2} x^{5}}$

Step 1.2

Factor out $x^{4}$ .

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

Step 1.3

Rewrite $x^{4}$ as ${(x^{2})}^{2}$ .

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

Step 1.4

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

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

Step 2

Pull terms out from under the radical.

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

Step 3

Multiply $x^{3}$ by $x^{2}$ by adding the exponents.

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Step 3.1

Move $x^{2}$ .

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

Step 3.2

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

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

Step 3.3

Add $2$ and $3$ .

$4 x^{5} (8 \sqrt{x})$

Step 4

Multiply $8$ by $4$ .

$32 x^{5} \sqrt{x}$