Question

64-48r+9r^2

Answer 1

9r^2 - 24r -24r + 64
(9r^2-24r) - (24r - 64)
3r(3r-8) - 8(3r - 8)
(3r-8)(3r-8)

factor out each group...then factor out again if possible. if you'd like to learn this method more you can message Hero( an OS user as well) to teach you..i saw this method from him and he offers free lessons regarding this

Answer 2

Okay, thanks a lot. :)