Question

(100+4) whole cube : find it using identity

Answer 1

(a+b)^3 =a^3+b^3+3a^2b+3ab^2

so by this ,

100^3+4^3+3(100^2)(4)+3(100)(4^2)

=1000000+16+120000+4800

=224816

**** hope this helps u**********