计算(2x/x²-64y²) - (1/x-8y)
答案:2 悬赏:40 手机版
解决时间 2021-02-20 05:08
- 提问者网友：暮烟疏雨之际
- 2021-02-19 22:28
计算(2x/x²-64y²) - (1/x-8y)
最佳答案
- 五星知识达人网友：你哪知我潦倒为你
- 2021-02-19 23:24
2x/(x^2-64y^2)-1/(x-8y)
=2x/(x-8y)(x+8y)-(x+8y)/ (x-8y)(x+8y)
=(x-8y)/(x-8y)(x+8y)
=1/(x+8y)
=2x/(x-8y)(x+8y)-(x+8y)/ (x-8y)(x+8y)
=(x-8y)/(x-8y)(x+8y)
=1/(x+8y)
全部回答
- 1楼网友：十鸦
- 2021-02-20 00:50
2x/(x+8y)(x-8y)-(x+8y)/(x+8y)(x-8y)
=(x-8y)/(x+8y)(x-8y)
=1/(x+8y)
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