The coefficient of x 3 in the expansion of (3 + bx) 5 is 720. Find the
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The coefficient of x3 in the expansion of (3 + bx)5 is −720. Find the value of the constant b.
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To find the value of the constant b we can use the Binomial Theorem ...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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