问题
解答题
解方程: (1)2x2-5x+2=0; (2)
|
答案
(1)原方程化为:(2x-1)(x-2)=0;
解得:x1=
,x2=2;1 2
(2)原式=
•1- 1 2 3 2
+3 3
=1
-13
+1 3
=
+13 2
.5+3 3 6
解方程: (1)2x2-5x+2=0; (2)
|
(1)原方程化为:(2x-1)(x-2)=0;
解得:x1=
,x2=2;1 2
(2)原式=
•1- 1 2 3 2
+3 3
=1
-13
+1 3
=
+13 2
.5+3 3 6