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  • m/x²-y²=2xy-y²/2x-y+x-y/x+y,則m=?

    m/x²-y²=2xy-y²/2x-y+x-y/x+y,則m=?
    回答滿意50分
    m/(x²-y²)=(2xy-y²)/
    (2x-y)+(x-y)/(x+y),則m=?
    數(shù)學(xué)人氣:412 ℃時(shí)間:2020-06-03 07:30:33
    優(yōu)質(zhì)解答
    m/(x²-y²)=(2xy-y²)/(2x-y)+(x-y)/(x+y)
    m/(x²-y²)=y(2x-y)/(2x-y)+(x-y)/(x+y)
    m/(x²-y²)=y+(x-y)/(x+y)
    m/(x²-y²)=y(x+y)(x-y)/[(x+y)(x-y)]+(x-y)(x-y)/[(x+y)(x-y)]
    m/(x²-y²)=[y(x+y)(x-y)+(x-y)²]/(x²-y²)
    m=y(x+y)(x-y)+(x-y)²=(x-y)(xy+y²+x-y).
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