Sunday
November 23, 2014

Homework Help: Math

Posted by Sara on Monday, June 13, 2011 at 9:31pm.

I was wondering if I solved these problems right?
Simplify the following:

3xy^2 4xz
______ + ______ = 7xyz
2y 3x _____
5


2(x-1) 3(x^2-4)
______ * ________ = 6(x-2)
4(x+2) 5x-5 ______
20


x^2-x-6 3(x^2-4)
________ / __________ = (x-3) (x+5)
7x+7 x^2+6x+5 ______________
21(x-2)

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