Gerry has two different part time jobs, and he works 20 hours per week at each job. he earns $8 per hour at one job. which expression represents how much gerry earned last week if he earns d dollars per hour at his other job?me

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