5a + 3 + (2a - 2) + a= 5a + 3 + 2a - 2 + a= 8a + 1
2a + 10 + 5a - 2 = (2a + 5a) + (10 - 2) = 7a + 8
5a(a+2) = 5a^2 + 10a
It is the 5 in 5a+2
3a4 - 2a2 + 5a - 10 - 2a4 + 4a2 + 5a - 2 = a4 + 2a2 + 10a - 12 = a4 + (2a - 2)(a + 6)
It is the 2.
5a
2a + 3a = 5a
6a + 2
7a + 4 = 5a + 7 7a = 5a + 3 2a = 3 a = 3/2
6a + 4 = 5a - 2 means that 6a - 5a = -2 - 4 which gives a = -6
20a2b2