1) (2a + 1)(x + y)2) (3b + 1)(x - y)3) (4a + 1)(m - n)4) (x + 1)(r - g)5) (5a - 1)(x + y)6) (4a - 1)(m - n)
1) (2a + 1)(x + y)
2) (3b + 1)(x - y)
3) (4a + 1)(m - n)
4) (x + 1)(r - g)
5) (5a - 1)(x + y)
6) (4a - 1)(m - n)