Some one plzzzz solve this Share with your friends Share 0 Soumik Ghosh answered this So answer is 280 3 View Full Answer Navin Saxena answered this (x+1/x)^3= x^3-1/x^3-3(x-1/x), OR 5^3=x^3-1/x^3-3*5 (as x-1/x=5 given) So, x^3-1/x^3= 125+15= 140, so 2x^3-2/x^3= 280 1 Prasham Shah answered this Factorisation 1