The GCF is 5p.
The GCF is 4.
Factors of 2: 1, 2Factors of 8: 1, 2, 4, 8GCF (2, 8) = 2
(11a + 8b)(11a - 8b)
(11a-8b)(11a+8b)
8b^2 -9b +1 8b^2 -8b -b +1 8b(b-1) - 1(b-1) (8b-1)(b-1)
2(a + 4b)
-2
With the factor 4a plus 8b 16c you can find the answer and check it mentally. You would first have to find he product of all the numbers to find the value of the letter A.
(a^2 + 8b)(a^2 - 5b)
b(b - 8)
4(a + 2b - 4c)