计算:3/x—6/(1—x)—(x+5)/(x2—x)x2是x的平方

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计算:3/x—6/(1—x)—(x+5)/(x2—x)x2是x的平方计算:3/x—6/(1—x)—(x+5)/(x2—x)x2是x的平方计算:3/x—6/(1—x)—(x+5)/(x2—x)x2是x的

计算:3/x—6/(1—x)—(x+5)/(x2—x)x2是x的平方
计算:3/x—6/(1—x)—(x+5)/(x2—x)
x2是x的平方

计算:3/x—6/(1—x)—(x+5)/(x2—x)x2是x的平方
原式=(3/x)+6/(x-1)-(x+5)/(x²-x)
=3(x-1)/(x²-x)+6x(x²-x)-(x+5)/(x²-x)
=[3(x-1)+6x-(x+5)]/(x²-x)
=(3x-3+6x-x-5)/(x²-x)
=(8x-8)/(x²-x)
=8(x-1)/[x(x-1)]
=8/x

3/x-6/(1-x)-(x+5)/(x^2-x)
=3(1-x)/(x-x^2) -6x/(x-x^2)+(x+5)/(x-x^2)
={3(1-x)-6x+(x+5)}/(x-x^2)
=8(1-x)/(x-x^2)
=8(1-x)/x(1-x)
=8/x