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July 23, 2014

July 23, 2014

Posted by **Jim** on Tuesday, April 2, 2013 at 10:23am.

2) (x-4)^2 - 16(x+2)^2

- Math algebraic factprization -
**Steve**, Tuesday, April 2, 2013 at 10:32ama^2-b^2 = (a-b)(a+b) so

(x+3)^2 - (x+1)^2

= ((x+3)-(x+1))((x+3)+(x+1))

= (2)(2x+4)

= 4x+8

similarly for the other

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