Question

3r^2-18r+27

Answer 1

factored is (3r-9)(r-3)

Answer 2

3r^2-18r+27



3(r^2-6r+9)



3(r^2-3r-3r+9)



3((r^2-3r)+(-3r+9))



3(r(r-3)+(-3r+9))



3(r(r-3)-3(r-3))



3(r-3)(r-3)



3(r-3)^2



So 3r^2-18r+27 completely factors to 3(r-3)^2



In other words, 3r^2-18r+27=3(r-3)^2

Answer 3

we r both right