题目内容
计算、解方程:
(1)计算:(
- 4
)-( 3
-2
);(2)x(2x-5)=4x-10.
(1)计算:(
| 48 |
|
|
| 0.5 |
(1)原式=(4
-
)-(
-
)
=4
-
-
+
=3
.
(2)原方程可化为:(x-2)(2x-5)=0,
解得:x=2或x=
.
| 3 |
| 2 |
| 3 |
| 2 |
=4
| 3 |
| 2 |
| 3 |
| 2 |
=3
| 3 |
(2)原方程可化为:(x-2)(2x-5)=0,
解得:x=2或x=
| 5 |
| 2 |
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