化简(x平方-y平方)/(x+y)+(x平方-2xy+y平方)/(x-y)
人气:455 ℃ 时间:2020-01-28 13:57:24
解答
(x平方-y平方)/(x+y)+(x平方-2xy+y平方)/(x-y)
=(x+y)(x-y)/(x+y)+(x-y)^2/(x-y)
=x-y+x-y
=2(x-y)
推荐
猜你喜欢
- happiness is for everyone.求译!
- 写小数时,整数部分仍按( )的写法,整数部分是0的要写( ).
- 《人民解放军百万大军横渡长江》一文是按什么顺序报道三路军的渡江作战的?为什么这样安排顺序?
- 屏风,纳凉,帷幕,缓冲,造型,伧俗、雅俗之别造句
- To turn your dream into reality,you should first ______the hard life here which you has not got used to so far
- 足球循环赛中,红队胜黄队,比分为4:1,黄队胜蓝队,比分为1:0,蓝队胜红队,比分为1:0,算各队的净胜球数.
- 2.2*(-2.1)+1.21*4.2-2.1*0.22简算!
- it took him three hours to clean his bedroom的同义句