By the binomial theorem, the term in the expansion of
is
which suggests that the contribution of the binomial coefficient should make up the remaining factor of 21. That is,
Need help pls explain
2 answers:
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By the binomial theorem, the term in the expansion of
is
which suggests that the contribution of the binomial coefficient should make up the remaining factor of 21. That is,
Answer:
<h2>17</h2>Step-by-step explanation: