Sunday

April 20, 2014

April 20, 2014

Posted by **mike** on Sunday, March 11, 2007 at 11:43pm.

these aswell

x^2 - 16

x^2– 6x + 9

a^2- 2ab + b^ 2

x^2+ 6x -16

x^2– 6x -16

(3x +a )(x +a )

3a +a= -4, so what is a?

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