I’ve tried to do it but i’m confused and need someone to show me.

FolksLord asked Aug 25, 2023

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35 votes

FolksLord asked Aug 25, 2023

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23 votes

From the given question,

Now,

Put x=-3 into the given expression

$\begin{gathered} x^4+9x^2=(-3)^4+9(-3)^2 \\ =81+9(9) \\ =81+81 \\ =162 \end{gathered}$

Hence, the option D is correct.

Rea answered Aug 31, 2023

by Rea

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