Question

Factoring quadratic expressions

Answer 1

\[12r^2 -64r + 80\]

Answer 2

Please don't use the quadratic formula.

Answer 3

@jim_thompson5910

Answer 4

@Nnesha

Answer 5

you can factor out the GCF first

Answer 6

4(3r^2 - 14r + 20)

Answer 7

4 times 14 is not 64

Answer 8

4(3r^2 - 16r + 20)

Answer 9

good

Answer 10

now factor 3r^2 - 16r + 20

Answer 11

4( 3r^2 + 10r + 6r + 20)
3r^2 + 10r + 6r + 20 => r(3r + 10) 2(3r + 10)
4(r + 2)(3r + 10)