Question 711398: Determine whether the number -6 is a zero of F(x)=x^3+2x^2-40x+64. If it is, find the other real zeros?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Determine whether the number -6 is a zero of F(x)=x^3+2x^2-40x+64. If it is, find the other real zeros?
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Use synthetic division:
-6)....1....2....-40....64
.......1....-4...-16...|..160
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Since f(-6) is not zero, -6 is not a zero.
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Cheers,
Stan H.
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