Multiply.11ax3(5ax7 + 3x2 + 12a)

A. 55ax7 + 33x2 + 132a
B. 55a2x10 + 33ax5 + 132a2x3
C. 55a2x10 + 3x2 + 12a
D. 55a2x10 + 33ax5


Answer: B

Mathematics

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