Question

503^3 . Evaluate the following suitable identities

Answer 1

Answer:

503 can  be written as (500 + 3)

=> (500 + 3)^3               [(a+b)^3=a^3+b^3+3ab(a+b)]

=>500^3 + 3^3 + 3(500)(3){500 + 3}

=>125000000 + 27 + 4500(503)

=>125000027 + 2263500

=>12763527