(x-2)^2-(x-1)/(x-2)+(x+1)/(x^2-x-2)计算
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(x-2)^2-(x-1)/(x-2)+(x+1)/(x^2-x-2)计算(x-2)^2-(x-1)/(x-2)+(x+1)/(x^2-x-2)计算(x-2)^2-(x-1)/(x-2)+(x+1)/
(x-2)^2-(x-1)/(x-2)+(x+1)/(x^2-x-2)计算
(x-2)^2-(x-1)/(x-2)+(x+1)/(x^2-x-2)计算
(x-2)^2-(x-1)/(x-2)+(x+1)/(x^2-x-2)计算
原式＝(x-2)^2-(x-1)/(x-2)+1/(x-2)＝(x-2)^2-1＝(x-1)(x-3)
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分解因式----（X*X-X)(X*X-X-2)+1
】x(x+1)+x^2(x-1)
1/(1-x)+1/(1+x)+2/(1+x*x)+4/(1+x*x*x*x)+8/(1-x*x*x*x*x*x*x*x)怎么做
x-1/x-2
{2X+1}+{X}
(x^2-1)/x
x^2-1/x
2X+|X+1|
｜x-1｜+｜x-2｜
(x+1)/(x+2)
/X+1/+/X+2/
2x/(1-x)
|X+2|+|X-1|
2x-1 (x
|x-2|+|x-1|