2*3 = 6
3*4 = 12
4*5 = 20
5*6 = 30
6*7 = 42
9*8 = 72
so 72
2*3=6
3*4=12
4*5=20
5*6=30
6*7=42
7*8=56
8*9=72
9*10=90
So 9=90 not 72
It can also be interpreted as (n*n)+n, or as n*n+n so...if 2 = 6, 3 = 12, 4 = 20, 5 = 30, and 6 = 42, what does 9 equal?
Mind sharing what this was for? lol![]()