x+1 |
x+3 |
A.x>3 | B.x<3 | C.x≠3 | D.x≠-3 |
x+1 |
x+3 |
3 |
x-2 |
A.x≠2 | B.x≠-2 | C.x>-2 | D.x>2 |
1 |
a |
3a2b3c |
4 |
5 |
6+x |
x |
7 |
y |
8 |
x2 |
x |
A.5 | B.4 | C.3 | D.2 |
1 |
x-3 |
A.x>3 | B.x<3 | C.x≠3 | D.x≠-3 |
|x|-4 |
x+4 |
A.4 | B.-4 | C.±4 | D.3 |
x-1 |
x(x-1)-2 |
A.1 | B.-1 | C.0 | D.2 |
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