a |
b |
c |
d |
a |
b |
c |
a |
b |
d |
a |
b |
a |
b |
c |
d |
c |
10 |
a |
b |
a |
b |
a |
b |
c |
c |
c |
a |
b |
c |
10 |
c |
d |
c |
d |
c |
d |
a |
b |
a |
b |
16 |
x |
16 |
x |
16 |
x2 |
16 |
x |
16 |
2 |
16 |
x |
π |
2 |
A.f(x)=-x(x+2) | B.f(x)=|x|(x-2) | C.f(x)=x(|x|-2) | D.f(x)=|x|(|x|-2) |
t |
t2+9 |
t+2 |
t2 |
A.
| B.
| C.
| D.
|
-2x+a |
2x+1+b |
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