2a |
a2-9 |
1 |
a-3 |
1 |
a |
1 |
b |
a2-b2 |
ab |
2a |
(a+3)(a-3) |
a+3 |
(a+3)(a-3) |
a-3 |
(a+3)(a-3) |
1 |
a+3 |
b-a |
ab |
ab |
(a+b)(a-b) |
a-b |
ab |
ab |
(a+b)(a-b) |
1 |
a+b |
xy2-x3 |
y |
x |
yz |
y |
zx |
z |
xy |
x |
x2-1+1 |
1 |
3 |
x2 |
x2+x+1 |
x+2 |
x2-2x |
x-1 |
x2-4x+4 |
x-4 |
x |
x+1 |
x-1 |
4 |
x2-1 |
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