(X-5)(X-6)=X-5 一元二次方程解
问题描述:
(X-5)(X-6)=X-5 一元二次方程解
答
(X-5)(X-6)=X-5
(X-5)(X-6)-(X-5)=0
(x-5)(x-6-1)=0
(x-5)(x-7)=0
x1=5 x2=7