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May 26, 2015

Homework Help: mathematics

Posted by STACEY on Saturday, June 13, 2009 at 8:16pm.

Factorise copletely
1) 2ax+3ay-2bx-3by
2)5x^2-20
3)3x^2+4x-15 is the ans to this one = 7x^3-15

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