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April 18, 2014

Homework Help: Mathh !!!!! Help please !!!

Posted by Melissa on Sunday, October 2, 2011 at 11:20pm.

i tried these quesions so many times , but i just cant get he right answer !

1.) 4(2-a)^2-81

2.) -(x-y)^3

3.)3x^2-27(2-x)^2

4.) 9(y-1)^2-25

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