问题
解答题
解方程
(1)3(x-2)2=x(x-2);
(2)2x2-5x-3=0.
答案
(1)整理得3(x-2)2-x(x-2)=0
即(x-2)(x-3)=0
x1=2,x2=3
(2)2x2-5x-3=0
(2x+1)(x-3)=0
x1=-0.5,x2=3
解方程
(1)3(x-2)2=x(x-2);
(2)2x2-5x-3=0.
(1)整理得3(x-2)2-x(x-2)=0
即(x-2)(x-3)=0
x1=2,x2=3
(2)2x2-5x-3=0
(2x+1)(x-3)=0
x1=-0.5,x2=3