factorise: x^3+x+2

Asked by laxmi.agarwal055 | 21st Feb, 2018, 08:42: PM

Expert Answer:

begin mathsize 16px style straight x cubed plus straight x plus 2
equals straight x cubed plus 1 plus straight x plus 1
equals open parentheses straight x plus 1 close parentheses left parenthesis straight x squared minus straight x plus 1 right parenthesis plus left parenthesis straight x plus 1 right parenthesis
equals left parenthesis straight x plus 1 right parenthesis left parenthesis straight x squared minus straight x plus 1 plus 1 right parenthesis
equals left parenthesis straight x plus 1 right parenthesis left parenthesis straight x squared minus straight x plus 2 right parenthesis end style

Answered by Sneha shidid | 22nd Feb, 2018, 10:23: AM