Question

If -1 is the zero of the polynomial p(x)=9x^3-x^2+x+4 Please it's urjent

Answer 1

Answer:

Answer by LinnW(1048) (Show Source): You can put this solution on YOUR website!

The original equation

p%28x%29=+x%5E3%2B4x%5E2-9x-36++

To evaluate P(-4) we substitute -4 for x

p%28-4%29=+%28-4%29%5E3%2B4%28-4%29%5E2-9%28-4%29-36+

Simplifying

p%28-4%29=+%28-64%29%2B4%2816%29%2B36-36+

p%28-4%29=+%28-64%29%2B64++

p%28-4%29=+0

As for the meaning, when x = -4,

The value of the function P(x) = 0

Answer 2

Answer:

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