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26-01-2017
Mathematics

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2x^2-4x-3-(x-4)(x+4)

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apologiabiology apologiabiology

26-01-2017

-(x-4)(x+4)=-x²+16

2x²-4x-3-x²+16
2x²-x²-4x-3+16
x²-4x+13

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