Question

evalute using identity = 39^3-21^3 give solution​

Answer 1

Answer:

50058

Step-by-step explanation:

Given ,

39^3-21^3 by using the identity (a^3-b^3)=(a-b)(a^2+b^2+ab)

=(39-21)(39^2+39×21+21^2)

=18(1521+819+441)

=18×2781

=50058

Hope this will help.