x-1/4=(x-1/4)(x+1/4)
x-1/4-(x-1/4)(x+1/4)=0
(1-x-1/4)(x-1/4)=0
(3/4-x)(x-1/4)=0
x1=3/4 x2=1/4解方程:x-1分之3-x(x-1)分之x+2=0