3x-2-x |
3x+2-x |
3x-2-x |
3x+2-x |
2x•3x-1 |
2x•3x+1 |
6x-1 |
6x+1 |
6-x-1 |
6-x+1 |
1-6x |
1+6x |
6x-1 |
6x+1 |
(6x+1)-2 |
6x+1 |
2 |
6x+1 |
2 |
6x2+1 |
2 |
6x1+1 |
2(6x1-6x2) |
(6x1+1)( 6x2+1) |
2 |
6x+1 |
2 |
6x+1 |
| ||
x+2 |
x2+9 |
A.(-∞,6] | B.(-∞,3] | C.(0,6] | D.(0,3] |
A.[2,4] | B.[3,7] | C.[1,3] | D.[2,6] |
6 |
x-1 |
x+4 |
8-a |
a |
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