**Guide :High School **

# 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

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

**Guide :High School **

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