Assuming the missing signs are pluses, that factors to (3a + b)(a + 3b)
3a2 - 16a + 5 = 3a2 - 15a - a + 5 = 3a(a -5) - 1(a -5) = (3a - 1)(a - 5)
3(a + 3)(a - 4)
The GCF is 3.
3a2
3a2 - 24ab + 48b2 = 3(a - 4b)2.
(a2 + 2)(b + 3)
3a2+16a+5 = (3a+1)(a+5) when factored
It is: 3A2
6a+9
(b + 2)(b - 8)
(a+b)(a-b)