Question

Evaluate (999)cube -(1)cube

Answer 1

(1000)cube-(1)cube
=(1000)cube-(1)3 -3*1000*-1(1000-1)-1
=1000000000-1+3000(1000-1)-1
=1000000000-2+3000000-3000
=1002996998

Answer 2

Answer:

Step-997002999 this is the answer but i forget all steps please help me

by-step explanation: