SOLUTION: The coefficient of x^2 is 69 in the expansion of (1-ax)^24, where a > 0. Find the coefficient of x^3.

SOLUTION: The coefficient of x^2 is 69 in the expansion of (1-ax)^24, where a > 0. Find the coefficient of x^3.

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Question 1187157: The coefficient of x^2 is 69 in the expansion of (1-ax)^24, where a > 0. Find the coefficient of x^3.
Answer by greenestamps(13198) (Show Source): You can put this solution on YOUR website!

In the expansion of , the coefficient of the x^2 term is

Given that that coefficient is 69, we have

OR

So there are going to be two different possible answers for the coefficient of x^3.

ANSWER #1:

ANSWER #2:

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