a2-b2 |
a-b |
a2+b2 |
ab |
(a+b)2 |
ab |
ab |
(a+b)2 |
ab |
a+b |
2×3 |
2+3 |
6 |
5 |
b |
3a |
6a |
b3 |
x2-9 |
x2-6x+9 |
1 |
x+3 |
1 |
x-2 |
1 |
x+2 |
x2 |
x2-4 |
2 |
m2 |
m-2 |
4 |
2-m |
A.0 | B.1 | C.-1 | D.(m+2)2 |
a2 |
a-2 |
4 |
2-a |
12 |
m2-9 |
2 |
m-3 |
3x |
x-2 |
x |
x+2 |
2x |
x2-4 |
3 |
a2-4 |
a2+6a+9 |
a-2 |
2a+6 |
1 |
x+1 |
1 |
x-1 |
x2-1 |
x2+3x |
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