Write the first three terms in the binomial expansion, expressing the result in simplified form.(3x + 2y)7
A. 2187x7 + 10,206x6y + 20,412x5y2
B. 7x7 + 6x6y + 5x5y2
C. 7x7y + 6x6y2 + 5x5y3
D. 2187x7y + 10,206x6y2 + 20,412x5y3
Answer: A
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?
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