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January 30, 2015

January 30, 2015

Posted by **Henry P** on Sunday, May 27, 2012 at 3:56pm.

- Math -
**kuai**, Sunday, May 27, 2012 at 4:27pmL = 4x-7

w = 3x+6

A = L*w

A = (4x-7)(3x+6) = 12x^2+24x+-21x+-42

A = 12x^2+3x-42

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