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got
456,976,000
Mara is playing a game. There are four
marbles in a bag, 3 purple and 1 orange. If
she chooses the purple marble, she will win
$10. If she chooses the orange marble, she
will win $200. What is the expected value of
Mara's winnings from the game?

12cm

the answer is d

but which class are u may know that first

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