The measure of QR is 15 cm, and the measure of Q'R' is 52.5 cm. Which scale factor was used for the dilation? A. B. 7 C. 2 D.

answer: idk

step-by-step explanation: sry idk

step-by-step explanation:

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

i think the answer is b x = 1, y = 35/2