(5 x 15) + (6 x 15) = 11 x 15 = 165
7(5 + 6)
9(2 + 3)
(2 x 9) + (3 x 9) = 5 x 9 = 45
32 + 20 = 4 x (8 + 5)
6(5 + 9) = (6 x 5) + (6 x 9) = 6 x 14 = 84
7(7 + 9)
9(2 + 3)
7(5 + 6)
9(2 + 3)
3 (21+5)
11(5 + 6)
5(8 + 5)
The GCF of 75 and 90 is 15.
The set of numbers given are not suited for this since 9 and 35 are co-prime so that the GCF of the given set of numbers is 1. Using a GCF of 1 does not help.
(2 x 9) + (3 x 9) = 5 x 9 = 45
6 + 36
(4 x 9) + (5 x 9) = (9 x 9)c= 81