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April 18, 2014

Homework Help: calculus

Posted by Paul--please help!! on Saturday, December 29, 2012 at 10:10pm.

I have posted this question earlier and had the answer given to me this way. But my teacher needs to know what type of factorization I used and I have tried to figure it out but have NO clue!!

This is the question.
Solve the following inequality. write your answer in interval notation.
x^3+9x^2-108 less than or equal to o

My anser:
(x+6)(x+6)(x-3)
we have double zeros at x= -6
graph comes from way low and bounces back down off the x-axis at x= -6

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