What is the total cost of a $12.50 item plus 6% sales tax?

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.

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

the correct answer is c

2

step-by-step explanation: