factorise : x4 +4 Share with your friends Share 0 Pooja Khanna answered this Please follow the link: https://www.meritnation.com/ask-answer/question/the-real-factores-of-x4-4/polynomials/6853575 0 View Full Answer Shridhar Thakur answered this X4+4 = X4+4+4X2-4X2 =(X2)2+(2)2 +(2.2.X2) - (2X)2 = (X2+2)2-(2X)2 = (X2+2+2X)(X2+2-2X) 3 Shreyanshi Panchal answered this x4+4can be written as (x2)2+(2)2 let we use the identity a2+b2=a2+2ab+b2 =x2+2(x2)(2)+(2)2 =x2(1+2)+2(1+2) =(1+2)(x2+2) 1