Question

If a*b = a^2 – b^2, what is the value of:

1) 6*4
2) 8*4
3) 10*5
4) 9*3
5) 20*15

Answer 1

6*4 = 6^ - 4^2 = 36 - 16 = 20

do the others the same way

Answer 2

post it.