a2-2ab+b2 |
a2-b2 |
1 |
a |
1 |
b |
2 |
2 |
(a-b)2 |
(a+b)(a-b) |
b-a |
ab |
(a-b)2 |
(a+b)(a-b) |
ab |
a-b |
ab |
a+b |
2 |
2 |
(1+
| ||||
1+
|
1 |
2 |
a2-b2 |
a2b-ab2 |
a2+b2 |
2ab |
11 |
11 |
4ab |
a-b |
4ab |
a+b |
3 |
2 |
1 |
2 |
1 |
c |
1 |
a |
ab+1 |
b |
3 |
3 |
1 |
y |
1 |
x |
x2-x-6 |
x-3 |
x+3 |
x2+x-6 |
A.-3 | B.-2 | C.-1 | D.±3 |
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