Simplify the Radical Expression square root of 4x^2

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

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

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

Pull terms out from under the radical.

$| 2 x |$

Remove non-negative terms from the absolute value.

$2 | x |$

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