In Example it was shown that(a + b)5 = a5 + 5a4 b + 10a3b2
Chapter 9, Problem 28E(choose chapter or problem)
Problem 28E
In Example it was shown that
(a + b)5 = a5 + 5a4 b + 10a3b2 + 10a2 b3 + 5ab4 + b35.
Evaluate (a + b)6 by substituting the expression above into the equation
(a + b)6 = (a + b)(a + b)5 and then multiplying out and combining like terms.
Example
Substituting into the Binomial Theorem
Expand the following expressions using the binomial theorem:
a.
b
Solution
a.
b.
Observe that So let and and substitute into the binomial theorem.
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