问题
解答题
解方程
(1)3x2-5x+2=0
(2)(x-3)2+2x(x-3)=0.
答案
(1)3x2-5x+2=0,
(3x-2)(x-1)=0,
3x-2=0,x-1=0,
x1=
,x2=1.2 3
(2)(x-3)2+2x(x-3)=0,
(x-3)(x-3+2x)=0,
x-3=0,x-3+2x=0,
x1=3,x2=1.
解方程
(1)3x2-5x+2=0
(2)(x-3)2+2x(x-3)=0.
(1)3x2-5x+2=0,
(3x-2)(x-1)=0,
3x-2=0,x-1=0,
x1=
,x2=1.2 3
(2)(x-3)2+2x(x-3)=0,
(x-3)(x-3+2x)=0,
x-3=0,x-3+2x=0,
x1=3,x2=1.