You have a 10x10x10 inch cube that is made up of little 1x1x1 inch cubes. you paint the outside of the big rube red. how many little cubes have paint on at least one of their sides?

  n=   0.0000 - 0.3750 i  

  n=   0.0000 + 0.3750 i

step-by-step explanation:

one of these should be correct

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb