化简5y-x/x²-y²-3x-4y/y²-x²-x+2y/x²-y&

vivovivo2022-10-04 11:39:542条回答

化简5y-x/x²-y²-3x-4y/y²-x²-x+2y/x²-y².

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心路回程共回答了9个问题 | 采纳率88.9%: 5y-x/x²-y²-3x-4y/y²-x²-x+2y/x²-y².
=（5y-x+3x+4y-x+2y)/(x^2-y^2)
=(11y+x)/x^2-y^2; 1年前

434434 共回答了6555个问题 | 采纳率: 5y-x/x²-y²-3x-4y/y²-x²-x+2y/x²-y²
=(5y-x+3x-4y-x-2y)/(x+y)(x-y)
=(x-y)/(x+y)(x-y)
=1/(x+y); 1年前

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