(x-1)x =42 解方程
问题描述:
(x-1)x =42 解方程
答
(x-1)x =42
(X-7)(X+6)=0
X1=7,X2=-6
(x-1)x =42 解方程
(x-1)x =42
(X-7)(X+6)=0
X1=7,X2=-6