Respuesta :

From the given question,

[tex]x^4+9x^2[/tex]

Now,

Put x=-3 into the given expression

[tex]x^4+9x^2=(-3)^4+9(-3)^2[/tex][tex]\begin{gathered} x^4+9x^2=(-3)^4+9(-3)^2 \\ =81+9(9) \\ =81+81 \\ =162 \end{gathered}[/tex]

Hence, the option D is correct.

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