The coefficient of x 3 in the expansion of (2 + x)(3 ax) 4 is 30.
Question:
The coefficient of x3 in the expansion of (2 + x)(3 − ax)4 is 30. Find two possible values of the constant a.
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To find the coefficient of x3 in the expansion of 2 x3 ax4 we can use the binomial expansion formula ...View the full answer
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Related Book For 
Edexcel AS And A Level Mathematics Pure Mathematics Year 1/AS
ISBN: 9781292183398
1st Edition
Authors: Greg Attwood
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