Find the product.(3r + 2t)4

A. 81r4 + 216r3t + 216r2t2 + 96rt3 + 16t4
B. 81r4 + 3r3t + 216r2t2 + 216rt3 + 16t4
C. 81r4 + 81r3t + 216r2t2 + 216rt3 + 16t4
D. 81r4 + 216r3t + 216r2t2 + 216rt3 + 16t4


Answer: A

Mathematics

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