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Solve for $w$ . $\newline$ $4 = w^2$ $\newline$ $w =$ _ or _

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Solve equations using square roots

Full solution

Q. Solve for

w

.

\newline

4 = w^2

\newline

w =

_____ or _____

Recognize equation form: Recognize the equation form. $4 = w^2$ is a basic quadratic equation where $w^2$ means $w$ squared.
Solve for $w$ : Solve for $w$ by taking the square root of both sides. $\newline$ $\sqrt{4} = \sqrt{w^2}$ $\newline$ $w = \pm 2$ because the square root of $4$ is $2$ , and the square root operation can result in both positive and negative values.

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