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#
If \(x^2-4=45\), then x could be equal to

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Question:

`_________`

.
A
\(-7\)

explanation

\(x^2=49\). When you take the square root of a number, the answer is the positive and negative values of the root. Therefore, \(x = 7\) and \(x = -7\). Only \(-7\) is an answer choice.

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