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January 30, 2015

January 30, 2015

Posted by **krystal** on Monday, February 16, 2009 at 7:06pm.

(u-2)(u+7)

my answer: 7u^2-49u

(5t-4)^2

my answer: 25t^2-40+16

Thank you :)

- math -
**Damon**, Monday, February 16, 2009 at 7:21pmhmm, well use either FOIL or the distributive property. I will use distributive property:

(u-2)(u+7)

my answer: 7u^2-49u

-----------------------

u(u+7) -2(u+7)

u^2 + 7u - 2u - 14

=

u^2 + 5 u - 14

===============================

- math -
**Damon**, Monday, February 16, 2009 at 7:22pm25t^2-40+16

You forgot a t

25t^2-40t+16

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