Evaluate 3 square root of 125

$3 \sqrt{125}$

Rewrite $125$ as $5^{2} \cdot 5$ .

Factor $25$ out of $125$ .

$3 \sqrt{25 (5)}$

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

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

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

Pull terms out from under the radical.

$3 (5 \sqrt{5})$

Multiply $5$ by $3$ .

$15 \sqrt{5}$

The result can be shown in multiple forms.

Exact Form:

$15 \sqrt{5}$

Decimal Form:

$33.54101966 \dots$

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