Simplify square root of 9y^4

$\sqrt{9 y^{4}}$

Step 1

Rewrite $9 y^{4}$ as ${(3 y^{2})}^{2}$ .

$\sqrt{{(3 y^{2})}^{2}}$

Step 2

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

$3 y^{2}$

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