Answer
(2r-5)(3r-4)
Work Step by Step
You are given $6r^{2}$-23r+20. Factor it out:
$6r^{2}$-8r-15r+20-break out the middle value-
($6r^{2}$-8r)+(-15r+20) -group the first two and last two terms-
2r(3r-4)-5(3r-4) -Find the GCF of each grouping-
(2r-5)(3r-4) -factor out the common term-
=(2r-5)(3r-4)
