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29-03-2017
Mathematics

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Which expression is equivalent to 4x2 + 9x – (x – 3)2 + 11?

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1999eva 1999eva

29-03-2017

4x^2+9x-(x^2-6x+9)+11
4x^2+9x-x^2+6x-9+11
3x^2+15x+2

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