解方程X2- (m2+m-2) x +m3-2m=0
问题描述:
解方程X2- (m2+m-2) x +m3-2m=0
答
X2- (m2+m-2) x +m3-2m=0
x -(m2-2)
x -m
[x-(m-2)][x-m]=0
x1=m-2
x2=m