x^2-2x+1=0 4x^2+13x+3=0 一般化
探索规律,并一般化,写出式子.
x^2-2x+1=0
(x-1)(x-1)=0
x=1
x^2-3x+2=0
(x-1)(x-2)=0
x=1 x=2
3x^2+x-2=0
3(x-2/3)(x+1)=0
x=2/3,x=-1
2x^2+5x+2=0
2(x+1/2)(x+2)=0
x=-1/2,x=-2
4x^2+13x+3=0
4(x+1/4)(x+3)=0
x=-1/4,x=-3
以上.结论一般化,写出式子...