【x平方除以(x+y)】-x+y=
答案:3 悬赏:50 手机版
解决时间 2021-03-04 00:50
- 提问者网友：最爱你的唇
- 2021-03-03 10:50
【x平方除以(x+y)】-x+y=
最佳答案
- 五星知识达人网友：冷風如刀
- 2021-03-03 11:52
x²/(x+y)-x+y
=x²/(x+y)-(x²-y²)/(x+y)
=[x²-(x²-y²)]/(x+y)
=y²/(x+y)
=x²/(x+y)-(x²-y²)/(x+y)
=[x²-(x²-y²)]/(x+y)
=y²/(x+y)
全部回答
- 1楼网友：不如潦草
- 2021-03-03 13:18
=x²/(x+y)-(x-y)
=x²/(x+y)-(x+y)(x-y)/(x+y)
=[x²-(x²-y²)]/(x+y)
=y²/(x+y)
望采纳
=x²/(x+y)-(x+y)(x-y)/(x+y)
=[x²-(x²-y²)]/(x+y)
=y²/(x+y)
望采纳
- 2楼网友：廢物販賣機
- 2021-03-03 12:34
x²/(x+y)-x+y
=x²/(x+y)-(x-y)
=x²/(x+y)-(x+y)(x-y)/(x+y)
=[x²-(x²-y²)]/(x+y)
=y²/(x+y)
望采纳
=x²/(x+y)-(x-y)
=x²/(x+y)-(x+y)(x-y)/(x+y)
=[x²-(x²-y²)]/(x+y)
=y²/(x+y)
望采纳
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