计算题:(3x^2+14x+16)/(x+3)-(2x^2-10x+13)/(x-3)-(x^3-9x^2-9x+75)/(x^2-9)
计算题:(3x^2+14x+16)/(x+3)-(2x^2-10x+13)/(x-3)-(x^3-9x^2-9x+75)/(x^2-9)
数学人气：946 ℃时间：2020-04-22 02:19:26
优质解答
(3x^2+14x+16)/(x+3)-(2x^2-10x+13)/(x-3)-(x^3-9x^2-9x+75)/(x^2-9)=(3x^2+9x+5x+15+1)/(x+3)-(2x^2-6x-4x+12+1)/(x-3)-(x^3-9x-9x^2+81-6)/(x^2-9)=(3x^2+9x)/(x+3)+(5x+15)/(x+3)+1/(x+3)-[(2x^2-6x)/(x-3)-(4x-1...
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