factorise x3+5x+25/4
Refer the following link :
https://www.meritnation.com/ask-answer/question/factorise-x-cube-5x-25-4/polynomials/9129841
https://www.meritnation.com/ask-answer/question/factorise-x-cube-5x-25-4/polynomials/9129841