2a |
b+1 |
c-1 |
a-b |
c |
2a |
b+1 |
c-1 |
2a |
b+1 |
c-1 |
2a |
2a |
b+1 |
b+1 |
c-1 |
c-1 |
2a |
b+1 |
c-1 |
2a |
b+1 |
c-1 |
1 |
2 |
a-b |
c |
8 |
10 |
4 |
5 |
4 |
5 |
4xy |
x+y |
t+2x |
t-2x |
t+2y |
t-2y |
A.4 | B.0 | C.2 | D.-2 |
(yz+1)(zx+1)(xy+1) |
(x2+1)(y2+1)(z2+1) |
x-1 |
x |
x-2 |
x+1 |
2x2-x |
x2+2x+1 |
a2-b2 |
(b-a)(b-2a) |
2a2-ab |
4a2-4ab+b2 |
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