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Find the area of the shaded region.

 

 Jul 19, 2020
 #1
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Area  =  [ (3x + 6)(2x + 4) ] - [  (x - 3)(x - 1) ]

         =  [ 6x2 + 12x + 12x + 24 ] - [ x2 - x - 3x + 3 ]

         =  [ 6x2 + 24x + 24 ] - [ x2 - 4x + 3 ]

         =  6x2 + 24x + 24 - x2 + 4x - 3

         =  5x2 + 28x + 21

 Jul 19, 2020

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