Question

(1000 + 1)³ by using the identity formula is ____________.

(Topic: Algebraic Identities).​

Answer 1

Answer:

997002999

Step-by-step explanation:

(999)³=(1000−1)³

=(1000)³ −(1) ³ −3(1000)(1)(1000−1)_____

(∵(x−y)³=x³−y³−3xy(x−y))

=1000000000−1−3000(999)

=1000000000−1−2997000=997002999