Question

If -1 is a zero of the polynomial p(x) = ax³ - x² + x + 4, find the value of a.

Answer 1

Answer:

P(-1)=a(-1)^3–(-1)^2+(-1)+4

a(-1)-1-1+4

a(-1)-2+4

a(-1)+2

a+1

a=-1

Answer 2

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