1 |
x |
1 |
y |
1 |
z |
1 |
y |
1 |
z |
1 |
x |
1 |
z |
1 |
x |
1 |
y |
A.1 | B.-1 | C.-3 | D.3 |
1 |
x |
1 |
y |
1 |
z |
1 |
x |
1 |
y |
1 |
z |
1 |
x |
1 |
z |
1 |
y |
1 |
y |
1 |
z |
1 |
x |
1 |
y |
1 |
z |
1 |
x |
1 |
z |
1 |
x |
1 |
y |
1 |
x |
1 |
y |
1 |
z |
1 |
x2 |
1 |
y2 |
A.b(ab-2) | B.a(ab+2) | C.a(ab-2) | D.b(ab+2) |
4 |
x2-4 |
2 |
x+2 |
1 |
x-2 |
a2 |
b |
b |
a |
2x+3 |
x(x-1)(x+2) |
A |
x |
B |
x-1 |
C |
x+2 |
2a2 |
a-3 |
18 |
3-a |
x2+1 |
x2-1 |
x-2 |
x-1 |
x-2 |
x |
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