Edward C. answered 03/09/15
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Caltech Grad for math tutoring: Algebra through Calculus
(11x3+4x2-5x-11)-(8x3+2x2+4x-5)
11x3 - 8x3 + 4x2 - 2x2 - 5x - 4x - 11 + 5
3x3 + 2x2 -9x - 6