分式的通分与约分①:x/a(x-y),y/b(y-x);②:1/x^2-1,2x/x^2-3x+2;

学习 时间:2026-10-09 18:56:02 阅读:4366
分式的通分与约分①:x/a(x-y),y/b(y-x);②:1/x^2-1,2x/x^2-3x+2;

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迅速的毛豆

羞涩的保温杯

2026-10-09 18:56:02

①:
x/a(x-y)=xb/ab(x-y),

y/b(y-x)=-y/b(-y)=-ay/ab(x-y);