Wednesday
July 30, 2014

Homework Help: Math

Posted by Angelina on Friday, March 9, 2012 at 1:38am.

2x^3+3x^2-120x

to find the critical numbers I took the derivative which is 6x^2+6x-120 so divide by 6 to simplify

x^2+x-20=0

so the critical numbers will be (4,0) and (-5,0) but its wrong I don't know y?

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