Question

find the value of p(x)=x⁴+4x³+5x²-6x+9 at x=-2

Answer 1

The solution is in the attachment

Answer 2

Hey !!!! ^_^


Here is your answer

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$p(x) = {x}^{4} + 4 {x}^{3} + 5 {x}^{2} - 6x + 9 \\ \\ then \: \\ x = - 2 \\ \\ p( - 2) = ({ - 2})^{4} + 4( { - 2})^{3} + 5 {( - 2)}^{2} - 6( - 2) + 9 \\ \\ p( - 2) = 16 - 32 + 20 + 12 + 9 \\ \\ p( - 2) = - 16 + 32 + 9 \\ \\ p( - 2) = 16 + 9 \\ \\ p( - 2) = 25$

I HOPE IT WILL HELP YOU

Thank you

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