4 years ago

Solve the equation x^3-5x^2+2x+8=0 given that -1 is a zero of f(x)=x^3-5x^2+2x+8

Mathematics

1 answer:

liraira [26]4 years ago

3 0

-1^3-5(-1)^2+2(-1)+8
-1-5-2+8
-6-2+8
-8+8=0

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