Answers

2015-08-15T10:21:37+08:00
      1.4x^3-7x+2x-4               2.5x^3-3x+10
(+)-  -3x^3-8x^2-3x+7       (+)- -x^3+6x^2-4x+2
-----------------------------      -------------------------------
       x^3-8x^2-8x+3               2x^3+6x^2-7x+12

     3.6y^4-2y^2+3y-1
(+)- -8y^4+5y^3+2y^2-6
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   -2y^4+5y^3+3y-7
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