Expand the expression using the Binomial Theorem.(3x + 5)4

A. 81x4 + 540x3 + 1350x2 + 1500x + 625
B. 405x4 + 2700 x3 + 1350x2 + 7500x + 625
C. 81x3 + 540x2 + 1350x + 1500
D. (9x2 + 15x + 25)4


Answer: A

Mathematics

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