Question

Evaluate (999)^3.....​

Answer 1

Answer:

999)3 = (1000 - 1)3

(a - b)3 = a3 - b3 - 3a2b + 3ab2

(999)3 = (1000)3 - (1)3 - 3 (1000)2  1 + 3  1000 12

= 1000000000 - 1 - 3000000 + 3000

= 997000000 + 3000 - 1 = 997002999

HOPE IT HELPS!!!