Finding Coefficients - IB Mathematics SL
IB Math SL Paper 2:
In the expansion of (2-ax)^5 the coefficient of x^2 is 5. Find the value of a.
I tried is using the formula for finding any specific term but I didn't get far.
- Kimberly
This questions has a Video Answer
Answer
In the video below. One of our Lanterna math tutors, Daniil, explains how to solve this. To get more help about this concept and the other core Mathematics SL topics, try our online Mathematics SL course with our 3 day limited free trial, or get the full content access by signing up to a course.
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Thanks to KikoCorreia @ Wikimedia, for providing the top image, used under the Creative Commons license.
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