Question

I don't understand this question

Answer 1

You have to factorise this by using identity... (x+y) whole cube
your answer will be ( 2p + 1/5 ) whole cube

Answer 2

Set the whole cubic polynomial in such a way that the whole polynomial will become a perfect cube..

Your solution is here....


${(2p)}^{3} + {( \frac{1}{5}) }^{3} + 3(2p)( \frac{1}{5} )(2p + \frac{1}{5}) \\ \\ = {(2p + \frac{1}{5} )}^{3}$