How do you factor 6xr+2xs+3yr+ys6xr+2xs+3yr+ys?
1 Answer
Apr 28, 2017
Explanation:
"factorise by 'grouping' "factorise by 'grouping'
color(red)(6xr+2xs)color(magenta)(+3yr+ys)6xr+2xs+3yr+ys
=color(red)(2x)(3r+s)+color(magenta)(y)(3r+s)=2x(3r+s)+y(3r+s)
(3r+s)" is a common factor to both groups"(3r+s) is a common factor to both groups
=(3r+s)(color(red)(2x)+color(magenta)(y))=(3r+s)(2x+y)
rArr6xr+2xs+3yr+ys=(3r+s)(2x+y)⇒6xr+2xs+3yr+ys=(3r+s)(2x+y)