问题
解答题
选择适当的方法解下列一元二次方程:5(y2-y)=3(y2-1)
答案
5y(y-1)-3(y+1)(y-1)=0
(y-1)(5y-3y-3)=0
(y-1)(2y-3)=0
y-1=0或2y-3=0
∴y1=1,y2=
.3 2
选择适当的方法解下列一元二次方程:5(y2-y)=3(y2-1)
5y(y-1)-3(y+1)(y-1)=0
(y-1)(5y-3y-3)=0
(y-1)(2y-3)=0
y-1=0或2y-3=0
∴y1=1,y2=
.3 2