问题:
计算题:
(1)
25
-
3
-8
+2
1
4
(2)(x+3)(x-4)-(x-1) 2
(3) (x4+2x3-
1
2
x2)÷(-
1
2
x)2.
计算题:
(1)
-
+2
(2)(x+3)(x-4)-(x-1) 2
(3) (x4+2x3-
x2)÷(-
x)2.
(1)
25 |
3 | -8 |
1 |
4 |
(2)(x+3)(x-4)-(x-1) 2
(3) (x4+2x3-
1 |
2 |
1 |
2 |
参考答案: