-a2+4b2 |
-4b2-a2+4ab |
3 |
4 |
3 |
2 |
(2a-a2)(a2+4a+3) |
(a2+a)(a2-5a+6) |
(2b-a)(2b+a) |
-(2b-a)2 |
2b+a |
-2b+a |
3 |
4 |
3 |
2 |
2×(-
| ||||
-2×(-
|
9 |
16 |
a(2-a)(a+1)(a+3) |
a(a+1)(a+2)(a-3) |
(2-a)(a+3) |
(a+2)(a-3) |
(-2)×7 |
6×1 |
7 |
3 |
a |
b |
a2-4ab+3b2 |
a2-8ab+7b2 |
x2+xy |
x2-2xy-3y2 |
3y-x |
x-y |
1 |
x-1 |
x |
x2-1 |
y |
y+x |
x |
y2-x2 |
a2 |
a-3 |
9 |
3-a |
a+3 |
a |
3 |
a-2 |
a+1 |
a2-4 |
x2 |
1-x |
x2 |
x-1 |
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