Simplify square root of 4x^2y^2

$\sqrt{4 x^{2} y^{2}}$

Step 1

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

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

Step 2

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

$2 x y$

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