a(x-y)-b(y-x)+c(x-y)怎么算?
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a(x-y)-b(y-x)+c(x-y)怎么算?
a(x-y)-b(y-x)+c(x-y)怎么算?
a(x-y)-b(y-x)+c(x-y)怎么算?
a(x-y)-b(y-x)+c(x-y)
=a(x-y)+b(x-y)+c(x-y)
=(x-y)(a+b+c).
a(x-y)-b(y-x)+c(x-y)
=a(x-y)+b(x-y)+c(x-y)
=(x-y)(a+b+c)
a(x-y)-b(y-x)+c(x-y)
解:原式=a(x-y)+b(x-y)+c(x-y)
=(a+b+c)(x-y)
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通分:-x/a(x-y) ,y/b(y-x)
通分x/a(x-y),y/b(y-x)
通分 a/(y-x)^2,b/(x-y)(x+y)
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因式分解a(x-y)+b(y-x)+c(x-y)