分式2x²/(x+y)²与 x²/x²-y²的最简公分母
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亲亲,分式2x²/(x+y)²与 x²/x²-y²的最简公分母答案是:(x+y)²(x-y)²-(x-y)(x+y)(x²+y²)=(x-y)(x+y)[(x+y)(x-y)-(x²+y²)]=(x-y)(x+y)(x²-y²-x²-y²)=-2y²(x-y)(x+y)
咨询记录 · 回答于2022-10-25
分式2x²/(x+y)²与 x²/x²-y²的最简公分母
能快点吗
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亲亲,分式2x²/(x+y)²与 x²/x²-y²的最简公分母答案是:(x+y)²(x-y)²-(x-y)(x+y)(x²+y²)=(x-y)(x+y)[(x+y)(x-y)-(x²+y²)]=(x-y)(x+y)(x²-y²-x²-y²)=-2y²(x-y)(x+y)
分式2x²/(x+y)²与 x²/x²-y²的最简公分母
算错了
要最简公分母
???
亲亲,是对的哦,就是最简公分母哦