3a2
3 x a x a
7b2 + 9
b2 - 7b2 C - 9
2 x (a + 4)
2 x a + 4 x a
4, 16, 20
4
(6 x 2a) + (6 x b)
6 x (2a + b)
5a3
5 x a x a x a
9r2 + 8
r2- 9r2 C- 8
6 x a x a
6a2
72, 81, 36
9
(5 x 6a) + (5 x 9)
5 x (6a +9)
4a2 + 5a3
4 x a x a x + 5 x a x a x a
8a3 + 7 - 6 - p2
a3 - 8a3 C- 7, 6 p2- p2
6 x a x a x a + 7 x a x a
6a3 + 7a2
42, 56, 70
14
(6 x 3b) + (6 x 8b)
6 x (3b + 8b)
5a2 + 3a5 - 8a3
5 x a x a + 3 x a x a x a x a x a - 8 x a x a x a
8c3 + 9 - 7c3 - 1
c3- 8c3, 7c3 C- 9, 1
6 x b x b x b -7 x b x b x b
6b3 - 7b3
16, 32, 88
8
(10 x 10a2) + (10 x 8a)
10 x (10a2 + 8a)
17a2 - 9a2 + 1a2
17 x a x a - 9 x a x a + 1 x a x a
8p5 + 1p5 - 6r + 8r - p5
p5- 8p5, 1p5, p5 r- 6r, 8r
6 x b x b + 5 x b x b x b - 9 x b x b
6b2 + 5b3 - 9b2
12, 36, 22
2
3 x (9b3 + 12e2)