Use the Binomial Theorem to expand the binomial and express the result in simplified form.(x + 3y)5
A. x5 + 15x4y + 90x3y2 + 270x2y3 + 405xy4 + 243
B. x5 + 15x4y + 90x3y2 + 270x2y3 + 405xy4 + 243y5
C. x5 + 15x4y + 180x3y2 + 540x2y3 + 405xy4 + 3y5
D. x5 + 15x4y + 180x3y2 + 540x2y3 + 405xy4 + 243y5
Answer: B
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