先化简((x+1)/(x-1)+1/(x²-2x+1))÷x/(x-1),然后选取一个你喜欢的x的值代入计算.
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先化简((x+1)/(x-1)+1/(x²-2x+1))÷x/(x-1),然后选取一个你喜欢的x的值代入计算.先化简((x+1)/(x-1)+1/(x²-2x+1))÷x/(x-1
先化简((x+1)/(x-1)+1/(x²-2x+1))÷x/(x-1),然后选取一个你喜欢的x的值代入计算.
先化简((x+1)/(x-1)+1/(x²-2x+1))÷x/(x-1),然后选取一个你喜欢的x的值代入计算.
先化简((x+1)/(x-1)+1/(x²-2x+1))÷x/(x-1),然后选取一个你喜欢的x的值代入计算.
原式=[(x²)/(x-1)²][(x-1))/x]=x/(x-1)
当x=2时,原式=2
=（x+1)/(x-1)×(x-1)/x+1/(x-1)^2×（x-1)/x
=(x+1)/x+1/x(x-1)
=(x^2-1)/x(x-1)+1/x(x-1)
=x^2/x(x-1)
x/x+(1-x)/x-1/x
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(x+1)(x-1)(x-x+1)(x+x+1)
分解因式----（X*X-X)(X*X-X-2)+1
X(X-1)=X
1.1/x|x/(x+1)|
x/x-1[1+(x-1/x)]
x-1/x÷(x-1/x)
】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
先化简,再求值:(2-x/x^2+x)/(x^2-3x/x^2+2x+1)x(9-x^2/4-2x),其中x=-2
先化简,在求值：x-1/x除以（x-2x-1/x),其中x=2
先化简,再求值：x²(x-1)-x(x²-x-1),其中x=½
x>1/1-x
x+1/x-1
(X + 1) /(x - 1)