The coefficient of x 2 in the binomial expansion of (2 + kx) 8 , where k
Question:
The coefficient of x2 in the binomial expansion of (2 + kx)8, where k is a positive constant, is 2800.
a. Use algebra to calculate the value of k.
b. Use your value of k to find the coefficient of x3 in the expansion.
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To find the coefficient of x2 in the binomial expansion of 2 kx8 we can use the f...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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