2a + 10 + 5a - 2 = (2a + 5a) + (10 - 2) = 7a + 8
2a + 11a - 5a = 8a
2a² + 6a
2a + 4b
2a + 3a + 4 = 5a + 4
5a + 11
5a³ - 4ab + 2a³ = (5+2)a³ - 4ab = 7a³ - 4ab.
2a+5
6+7a+6b
5a + 4b - 3a =(5a - 3a) + 4b =2a + 4b =2 (a + 2b)
5a + 3 + (2a - 2) + a= 5a + 3 + 2a - 2 + a= 8a + 1
2a + 5a + 3a = 10a