Basic Math Examples

$\sqrt{10} \cdot \sqrt{40}$

Step 1

Combine using the product rule for radicals.

$\sqrt{10 \cdot 40}$

Step 2

Write the expression using exponents.

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Step 2.1

Multiply $10$ by $40$ .

$\sqrt{400}$

Step 2.2

Rewrite $400$ as $20^{2}$ .

$\sqrt{20^{2}}$

Step 2.3

Pull terms out from under the radical, assuming positive real numbers.

$20$