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Simplify the following expression as far as possible: 2 x 2 - ( x + 3) - 2 x (1 - x)

 Aug 15, 2017
 #1
avatar+178 
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Input:2 x 2 - ( x + 3) - 2 x (1 - x)

Intepretation:\(2x^2-(x+3)-2x(1-x)\)

\(=2x^2-x-3-2x+2x^2\)

\(=4x^2-3x-3\)

Q.E.D.

 Aug 15, 2017
 #2
avatar+7460 
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\(2x^2-(x+3)-2x(1-x)\\ =2x^2-x-3-2x+2x^2\\ =4x^2-3x-3\)

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 Aug 15, 2017

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