



计算分式x-y/x²+xy乘以x²y²-x的四次方/xy-x²

学习时间:2026-11-12 23:19:45 阅读：7019

计算分式x-y/x²+xy乘以x²y²-x的四次方/xy-x²

最佳回答

要减肥的飞鸟

飘逸的斑马

2026-11-12 23:19:45



原式=(x-y)/x(x+y)*[-x²(x²-y²)]/[-x(x-y)]=(x-y)/x(x+y)*x²(x+y)(x-y)/x(x-y)=(x-y)/x(x+y)*x(x+y)=x-y

最新回答共有2条回答

故意的小松鼠
回复
2026-11-12 23:19:45
原式=(x-y)/x(x+y)*[-x²(x²-y²)]/[-x(x-y)]=(x-y)/x(x+y)*x²(x+y)(x-y)/x(x-y)=(x-y)/x(x+y)*x(x+y)=x-y

热门文章

猜你喜欢