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26-07-2017
Mathematics

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(3×cubed + 7xsquared-13x-21)÷(x+3)

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26-07-2017

3x^3 + 7x^2 - 13x - 21
-----------------------------
   x + 3

   3 7 -13 -21
-3 -9 6 21
------------------------------------
   3 -2 -7 0

3x^2 - 2x - 7

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