Evaluate square root of 15* square root of 5

$\sqrt{15} \cdot \sqrt{5}$

Step 1

Combine using the product rule for radicals.

$\sqrt{15 \cdot 5}$

Step 2

Multiply $15$ by $5$ .

$\sqrt{75}$

Step 3

Rewrite $75$ as $5^{2} \cdot 3$ .

Factor $25$ out of $75$ .

$\sqrt{25 (3)}$

Rewrite $25$ as $5^{2}$ .

$\sqrt{5^{2} \cdot 3}$

$\sqrt{5^{2} \cdot 3}$

Step 4

Pull terms out from under the radical.

$5 \sqrt{3}$

Step 5

The result can be shown in multiple forms.

Exact Form:

$5 \sqrt{3}$

Decimal Form:

$8.66025403 \dots$

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