Which expression is equivalent to (3x + 8)^2 – (x – 7)?A. 9x ^2 + 47x + 57B. 9x ^2 + 47x + 71C. 9x ^2 - x + 57D. 9x^2 - x + 71

Peter Carter asked Jul 1, 2023

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Peter Carter asked Jul 1, 2023

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19 votes

SOLUTION

The given expression is

This is simplified as

$\begin{gathered} 9x^2+48x+64-x+7 \\ =9x^2+48x-x+64+7 \\ =9x^2+47x+71 \end{gathered}$

Therefore the given expression is equivalent to

AlvinH answered Jul 6, 2023

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