Me n my dad share the cost of a meal the ratio of 2: 3 i payed £52.20 whats the total cost of the meal

-2

7 - 9 = -2

reversed:

-2 + 9 = 7

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