化简分式x²-1分之x²+x
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化简分式x²-1分之x²+x
x-1分之xx²+x/x²-1
=X(X+1)/(X+1)(X-1)
=X/X-1
x²+x/x²-1
=X(X+1)/(X+1)(X-1)
=X/X-1
分子分母同时因式分解约分(x+1),得x-1分之x
(X 1)(x-1)/x(x 1)=x-1/x
化简分式x²-1分之x²+x
x-1分之xx²+x/x²-1
=X(X+1)/(X+1)(X-1)
=X/X-1
x²+x/x²-1
=X(X+1)/(X+1)(X-1)
=X/X-1
分子分母同时因式分解约分(x+1),得x-1分之x
(X 1)(x-1)/x(x 1)=x-1/x