Question 430824
r^2-16r+60+0
we need to look for factors of 60 .  since 60 is positive we are looking for factors both either positive or negative so when multiplied it is 60 when added is -16           factors of -10 and -6 will do the trick

r^2-10r-6r+60=0
r(r-10)-6(r-10)=0
(r-6)(r-10)=0
r=6,10    ANS