Archive
21st of March 2017
Mathematics
Q:

Factorise: x3 - x2 +ax + x - a -1

Vikas Mahajan - CBSE - Class IX

Tuesday, March 21, 2017 at 17:55:PM

A:

begin mathsize 16px style straight x cubed space minus space straight x squared space plus ax space plus space straight x space minus space straight a space minus 1
straight x cubed minus straight x squared plus ax minus straight a plus straight x minus 1
straight x squared open parentheses straight x minus 1 close parentheses plus straight a open parentheses straight x minus 1 close parentheses plus open parentheses straight x minus 1 close parentheses
open parentheses straight x minus 1 close parentheses open parentheses straight x squared plus straight a plus 1 close parentheses end style

Tuesday, March 21, 2017 at 18:02:PM