LeilanaR597199 LeilanaR597199

30-10-2022
Mathematics

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What is the value of the expression below when x = 4?7x2 + 8x - 7

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MiroF494962 MiroF494962

30-10-2022

We just need to replace x by 4 on the initial expression as:

[tex]\begin{gathered} 7x^2+8x-7 \\ 7(4)^2+8(4)-7 \\ 7(16)+8(4)-7 \\ 112+32-7 \\ 137 \end{gathered}[/tex]

Answer: 137

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