(x+4)(x+3)
(x-4)(x-3)
(x-4)(x+3)
(x+4)(x-3)
1/2
- 1/2
1/4
- 1/4
69
99
89
109
12ab
24ab
36ab
144ab
x2 + y2
x2 - y2
x + y
x + y2
2x2 + 6xy + 6y2
4x2 + 12xy + 9y2
4x2 + 6xy + 6y2
2x2 + 12xy + 6y2
6
9
4
12
7
8
10
14
16
18
30
35
40
45