x05-64y05分之2x减x-8y分之1等于多少
答案:1 悬赏:20 手机版
解决时间 2021-11-15 14:32
- 提问者网友：星軌
- 2021-11-15 07:55
x05-64y05分之2x减x-8y分之1等于多少
最佳答案
- 五星知识达人网友：十年萤火照君眠
- 2021-11-15 08:17
x05-64y05分之2x减x-8y分之1等于多少
解：
2x/(x²-64y²)-1/(x-8y)
=2x/[(x+8y)(x-8y)]-(x+8y)/[(x+8y)(x-8y)]
=(2x-x-8y)/[(x+8y)(x-8y)]
=(x-8y)/[(x+8y)(x-8y)]
=1/(x+8y)
解：
2x/(x²-64y²)-1/(x-8y)
=2x/[(x+8y)(x-8y)]-(x+8y)/[(x+8y)(x-8y)]
=(2x-x-8y)/[(x+8y)(x-8y)]
=(x-8y)/[(x+8y)(x-8y)]
=1/(x+8y)
我要举报
如以上回答内容为低俗、色情、不良、暴力、侵权、涉及违法等信息，可以点下面链接进行举报！
点此我要举报以上问答信息
大家都在看
推荐资讯