Sally gets £12 pocket money per week. She spends £3.50 on bus fare. What fraction of her weekly pocket money does she spend on bus fare?

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

what are the answer choices given for this problem?

to be honest i don't know but i need points so

it is ok do not worry about it my dude. have a good one