(x^2-y^2)2除以(x+y)^2再除以(x-y)等于多少
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(x^2-y^2)2除以(x+y)^2再除以(x-y)等于多少(x^2-y^2)2除以(x+y)^2再除以(x-y)等于多少(x^2-y^2)2除以(x+y)^2再除以(x-y)等于多少[(x
(x^2-y^2)2除以(x+y)^2再除以(x-y)等于多少
(x^2-y^2)2除以(x+y)^2再除以(x-y)等于多少
(x^2-y^2)2除以(x+y)^2再除以(x-y)等于多少
[(x²-y²)²/(x+y)²]/(x-y)
=[(x+y)(x-y)/(x+y)]²/(x-y)
=(x-y)²/(x-y)
=x-y
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