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March 28, 2015

March 28, 2015

Posted by **Albert** on Friday, November 13, 2009 at 9:30pm.

Find a polynomial A(x) that represents the new area.

By how much will the area of the new garden differ from that of the old garden?

- Math - Algebra -
**Reiny**, Friday, November 13, 2009 at 9:34pmOld garden : x by x or x^2

new garden :(x-3) by (x+3)

A(x) = (x+3)(x-3) or x^2 - 9

difference = old garden - new garden

= x^2 - (x^2 - 9)

= 9

- Math - Algebra -
**Albert**, Friday, November 13, 2009 at 9:41pmThanks a lot. This really helps me understand the problem better. Hope I can help someday! :)

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