计算x²+4/x+3+x²-x-6/x+3-2x²-2x-5/x+3=
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![计算x²+4/x+3+x²-x-6/x+3-2x²-2x-5/x+3=](/uploads/image/z/325281-57-1.jpg?t=%E8%AE%A1%E7%AE%97x%26%23178%3B%2B4%2Fx%2B3%2Bx%26%23178%3B-x-6%2Fx%2B3-2x%26%23178%3B-2x-5%2Fx%2B3%3D)
计算x²+4/x+3+x²-x-6/x+3-2x²-2x-5/x+3=
计算x²+4/x+3+x²-x-6/x+3-2x²-2x-5/x+3=
计算x²+4/x+3+x²-x-6/x+3-2x²-2x-5/x+3=
x²+4/x+3+x²-x-6/x+3-2x²-2x-5/x+3
=(x²+4+x²-x-6-2x²-2x-5)/(x+3)
=(-3x-7)/(x+3)
=-(3x+7)/(x+3)