若1/(a-1)

问题描述:

若1/(a-1)怎么把上式化成(a+1)(3a-2)(2a-3)

数学人气:386 ℃时间:2020-05-05 05:07:29
优质解答
1/(a-1)将右边的项移到左边,得1/(a-1)-1/(3-2a)通分得(2-3a)/((a-1)(3-2a))等价于(a+1)(3a-2)(2a-3)解得a

1/(a-1)将右边的项移到左边,得1/(a-1)-1/(3-2a)通分得(2-3a)/((a-1)(3-2a))等价于(a+1)(3a-2)(2a-3)解得a