Question

Hallar: a3 - b3
Si: a - b = 3 y a2+ ab + b2 = -2​

Answer 1

Seria asi:

a.3 - b.3

3.3 - 3.3 = 81

3.2+3.3+ 3.2=-2

6 + 9 + 5 - 2=

14 + 4 - 2

18 - 2

16