Archive
14th of September 2015
Mathematics
Q:

Factorised : 3y^4-243

Parul Kanojia - CBSE - Class IX

Monday, September 14, 2015 at 18:42:PM

A:

Hi

begin mathsize 14px style 3 y to the power of 4 minus 243 equals 3 left parenthesis y to the power of 4 minus 81 right parenthesis equals 3 left square bracket left parenthesis y squared right parenthesis squared minus 9 squared right square bracket equals 3 left square bracket left parenthesis y squared minus 9 right parenthesis left parenthesis y squared plus 9 right parenthesis right square bracket equals 3 left parenthesis y minus 3 right parenthesis left parenthesis y plus 3 right parenthesis left parenthesis y squared plus 9 right parenthesis end style

Monday, September 14, 2015 at 18:47:PM