(5x-1)的平方-3(5x-1)=0 用方程解
问题描述:
(5x-1)的平方-3(5x-1)=0 用方程解
答
(5x-1)的平方-3(5x-1)=0
(5x-1)(5x-1-3)=0
(5x-1)(5x-4)=0
5x-1=05x-4=0
∴X1=1/5
X2=4/5