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July 31, 2014

July 31, 2014

Posted by **Anonymous** on Wednesday, June 27, 2012 at 6:34am.

- algebra -
**Reiny**, Wednesday, June 27, 2012 at 7:31amArea of square with side 3x+2y

= (3x+2y)^2

= 9x^2 + 12xy + 4y^2

area of square with side 3x-2y

= (3x-2y)^2

= 9x^2 - 12xy + 4y^2

difference = 24xy

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