Acereal box is 9 inches by 2.5 inches by 10 inches. what is the volume of the box?

When doing volume you do Length x Width x Height (9 x 2.5 x 10) the answer is 225 if I’m not mistaken

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