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Expand as a binomial series and simplify: (x+3)^7
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I got \[x ^{7} +21x ^{6}+189x ^{5}+945x ^{4}+2835x ^{3}+5103^{2}+5103x+2187\]I haven't worked with these before, so I was wondering if someone could check my work.
Interestingly 2187 is 3^7
You have the correct answer. Good job.
assuming you meant \[5103x^{2}\]
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