SOLUTION: Solve. (x+9)(x-13)(x+6)>0 I am lost as to how to solve this!!

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Question 303863: Solve.
(x+9)(x-13)(x+6)>0
I am lost as to how to solve this!!
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
>0 means a positive value

for the product of three values to be positive
___ either they are all positive
___ or one is positive and the other two are negative

if x > 13, then all are positive

if -9 < x < -6, then one is positive and two are negative

so it is a two part solution