化简【（x的平方-2x+1）分之x的平方-1】乘以【（x的平方+x）分之（x-1）】+（x分之2）
人气：429 ℃ 时间：2019-12-15 05:31:58
解答
原式=(x+1)(x-1)/(x-1)²*(x-1)/x(x+1)+2/x
=(x+1)/(x-1)*(x-1)/x(x+1)+2/x
=1/x+2/x
=3/x
推荐
猜你喜欢
- -----------mothers cant come to the meeting because they have gone to Dalian.A.Sally,s and Jane.
- Whom is it like that you love me
- 一瓶油连瓶重1.7千克,用去一半后连瓶还重0.95千克,原来油重多少千克?
- 已知正整数X满足.-x+2/3>0,求.代数式(1-2X)2003-5/x的值
- 一:在数集{-3,-2,-1,0,1,2,3}中,哪些数是不等式3/4x-1
- 一个物体M=1千克,受到一个大小为5牛的水平力的作用,物体与地面间摩擦因数为0.1,求物体加速度大小,
- 左边是不字下边有一横,右边是耳刀,这个字怎么读?
- 主动换被动 1.We often sing this song 2,He is repairing the machine 3.He has finished his work
