How do you factor #4r^2-13rt+9t^2#?
1 Answer
May 6, 2016
Explanation:
There are several ways to see this, but since the coefficients add up to
#4r^2-13rt+9t^2#
#=4r^2-4rt-9rt+9t^2#
#=(4r^2-4rt)-(9rt-9t^2)#
#=4r(r-t)-9t(r-t)#
#=(4r-9t)(r-t)#
