a2-b 2 |
(a-b)(a-c) |
c2-b2 |
(a-b)(c-a) |
a2-b2 |
(a-b)(a-c) |
c2-b2 |
(a-b)(a-c) |
a2-c2 |
(a-b)(a-c) |
a+c |
a-b |
3-1 |
3-(-2) |
2 |
5 |
x2+9x |
x2+3x |
x2-9 |
x2+6x+9 |
2-x |
x-1 |
3 |
x-1 |
A.
| B.
| ||||||||
C.(
| D.
|
m |
m-n |
n |
m+n |
2mn |
m2-n2 |
a2+8 |
a2+4a+4 |
4a-4 |
a2+2a |
x2-3 |
x-1 |
1 |
x-1 |
1 |
p |
1 |
q |
1 |
p+q |
p |
q |
q |
p |
A.1 | B.-1 | C.2 | D.-2 |
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