marci is putting together a selection of candy bags that have at most 12 candies in it. she is choosing either nerd boxes or starburst packs. she wants to pick at least three nerd boxes and two starburst packs. let n be the number of nerds she uses and let s be the number of starburst she uses.

I'm not understanding what it is asking, take a picture of it

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb