解方程!!!!!
(y^2-y)^2-4(2y^2-2y-3)=0
参考答案:解:设y^2-y=m
m^2-4(2m-3)=0
m^2-8m+12=0
m1=2,m2=6
代入
y^2-y=2
y^2-y-2=0
y1=-1,y2=2
y^2-y=6
y^2-y-6=0
y3=-2,y4=3
∴原方程的解是y1=-1,y2=2,y3=-2,y4=3
(y^2-y)^2-4(2y^2-2y-3)=0
参考答案:解:设y^2-y=m
m^2-4(2m-3)=0
m^2-8m+12=0
m1=2,m2=6
代入
y^2-y=2
y^2-y-2=0
y1=-1,y2=2
y^2-y=6
y^2-y-6=0
y3=-2,y4=3
∴原方程的解是y1=-1,y2=2,y3=-2,y4=3