MarionaT519863 MarionaT519863

25-10-2022
Mathematics

contestada

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

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SeleemN668811 SeleemN668811

25-10-2022

SOLUTION

The given expression is

[tex](3x+8)^2-(x-7)[/tex]

This is simplified as

[tex]\begin{gathered} 9x^2+48x+64-x+7 \\ =9x^2+48x-x+64+7 \\ =9x^2+47x+71 \end{gathered}[/tex]

Therefore the given expression is equivalent to

[tex]undefined[/tex]

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