SOLUTION: Solve each polynomial equation by factoring x^3+2x^2-9x-18=0.

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Question 1007373: Solve each polynomial equation by factoring
x^3+2x^2-9x-18=0.

Found 2 solutions by tiffany222, lwsshak3:
Answer by tiffany222(56) About Me  (Show Source):
You can put this solution on YOUR website!
x^3 + 2x^2 - 9x - 18 = 0
x^2(x+2) - 9(x+2) = 0
(x^2 -9) (x+2) = 0
(x+3) (x-3) (x+2) = 0
x = -3, 3, -2
Final Answer: x = -3, 3, -2

Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Solve each polynomial equation by factoring
x^3+2x^2-9x-18=0.
x^2(x+2)-9(x+2)=0
(x+2)(x^2-9)=0
x+2=0
x=-2
x^2-9=0
x^2=9
x=±√9=±3