题目
题型:解答题难度:一般来源:不详
(1)3
2 |
8 |
18 |
(2)(2
3 |
6 |
12 |
(3)3a
2a |
8a3 |
|
答案
2 |
2 |
2 |
=-
2 |
(2)原式=2
36 |
72 |
=12-6
2 |
(3)原式=3a
2a |
2a |
2a |
=2a
2a |
核心考点
举一反三
(1)(
2 |
(2)
5 |
1 | ||
|
|
①2
|
|
18 |
2 |
|
②(3
12 |
|
48 |
3 |
(2)解方程:
①3x2+8x-3=0;
②x-2=x(x-2);
③3x2-4x-2=0(配方法).
(-4)2 |
②
3 |
6 |
2 |
(1)5
6 |
12 |
18 |
(2)已知x=
3 |
(3)(x+3)2=2x+5.
(4)x2-5x+2=0.
A.
| B.
| C.
| D.
|
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