Verified Answer :

x^2 = 16
x = √16
x = 4.
so the answer is A. x = 4.

Exvited

\(x^{2}\) = 16

First, take the square root to both sides. 
\(x =\) ±\(\sqrt{16}\)
Second, now we have 4 × 4 which is 16, meaning the square root of 16 is 4. 
\(x =\) ±\(4\)
Third, there are two solutions. 
\(-4 \\ and \\ 4\)
Fourth, since we have two values, it is reasonable to use the plus-minus sign to indicate there is a positive and a negative solution.

Answer: C) x = ±4

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