A.
| B.
| ||||||||||||
C.
| D.
|
1 |
x |
1 |
2 |
2-x |
2x |
x |
x-1 |
x-x+1 |
x-1 |
1 |
x-1 |
t |
x |
t-1 |
x |
t-(t-1) |
x |
1 |
x |
t |
x |
t |
y |
t(x+y) |
xy |
a-3b |
a-b |
a+b |
a-b |
8a |
1-x32 |
2 |
1-x |
2 |
1+x |
4 |
1+x2 |
8 |
1+x4 |
16 |
1+x8 |
32 |
1+x16 |
1 |
a |
1 |
b |
1 |
a+b |
b |
a |
a |
b |
A.1 | B.0 | C.-1 | D.-2 |
x2 |
y-x |
y2 |
x-y |
A.-x-y | B.y-x | C.x-y | D.x+y |
a |
2a+4 |
b |
2b+4 |
1 |
a+2 |
1 |
b+2 |
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