(x-3)/(x-1) = m/(x-1) 有增根,则增根为___时,m的值为____
问题描述:
(x-3)/(x-1) = m/(x-1) 有增根,则增根为___时,m的值为____
答
两边乘x-1
x-3=m
增根就是分母为0
x-1=0
x=1
代入x-3=m
m=1-3=-2
所以增根是x=1,m=-2