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factor and simplify: (2x+3)^2 - (x-4)^2
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by Dao at April 15, 2010

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its in the form a^2 - b^2thus,(2x+3-(x-4))(2x+3+x-4)=(2x+3-x+4)(2x+x+3-4)=(x+7)(3x-1)

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Sandesh April 15, 2010