Archive
14th of September 2015
Mathematics
Q:

factorise : x4 + 2x3y - 2xy3 -y4

Nisha_vini29 - CBSE - Class IX

Sunday, September 13, 2015 at 00:21:AM

A:

x to the power of 4 plus 2 x cubed y minus 2 x y cubed minus y to the power of 4 equals x to the power of 4 minus y to the power of 4 plus 2 x cubed y minus 2 x y cubed equals open parentheses x squared minus y squared close parentheses open parentheses x squared plus y squared close parentheses plus 2 x y open parentheses x squared minus y squared close parentheses equals open parentheses x squared minus y squared close parentheses open parentheses x squared plus y squared plus 2 x y close parentheses equals open parentheses x squared minus y squared close parentheses open parentheses x squared plus y squared close parentheses squared

Monday, September 14, 2015 at 19:08:PM