Question

Evaluate using special identities (999)³

Answer 1

Answer:

997,002,999

Step-by-step explanation:

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

= (1000-1)³

= 1,000³- 3(1,000)²(1)+3(1,000)(1)²-1³

= 1,000,000,000 - 3,000,000+ 3,000 - 1

= 997,002,999