SOLUTION: Is x=-1 a zero of the function P(x)=x^3-3x^2-x+3? Why or Why not?

SOLUTION: Is x=-1 a zero of the function P(x)=x^3-3x^2-x+3? Why or Why not?

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Question 314379: Is x=-1 a zero of the function P(x)=x^3-3x^2-x+3? Why or Why not?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

Yes, because which is the definition of a zero.
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