Question

Evaluate the following : a3 + b3 +c3 - 3ab if a = - 1, b =2, c = 3​

Answer 1

Answer:

18

Step-by-step explanation:

(-1)3 + (2)3 + (3)3 - 3(-1)(2)

-3 + 6 + 9 +6

-3 + 21

+18

Answer 2

Answer:

18

Step-by-step explanation:

-1*3+2*3+3*3-3*-1*2

-3+6+9-(-3)*2

-3+15+6

-3+21

18