2(x-1)分之x,x的平方-1分之5,3(x-2)的平方分之4 通分
问题描述:
2(x-1)分之x,x的平方-1分之5,3(x-2)的平方分之4 通分
答
x/2(x-1)=3(x+1)(x-2)^2/[6(x+1)(x-1)(x-2)^2]
5/(x^2-1)=5/(x+1)(x-1)=30(x-2)^2/[6(x+1)(x-1)(x-2)^2]
4/3(x-2)^2=8(x+1)(x-1)/[6(x+1)(x-1)(x-2)^2]