SOLUTION: Tutors I have the following problem: Use substitution to determine that -4,2,1are zeros of f(x)=x^3+3x^2-4x Thank you

SOLUTION: Tutors I have the following problem: Use substitution to determine that -4,2,1are zeros of f(x)=x^3+3x^2-4x Thank you

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Question 141581: Tutors I have the following problem: Use substitution to determine that -4,2,1are zeros of f(x)=x^3+3x^2-4x
Thank you
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

x=-4 is a zero of f(x).

x=2 is not a zero of f(x).

x=1 is a zero of f(x).

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