Factor out the greatest common factor.36x9y8 + 120x2y6 - 84x5y4
A. 12x2y4(3x7y4 + 10y2 - 7x3)
B. x2y4(36x7y4 + 120y2 - 84x3)
C. 12(3x9y8 + 10x2y6 - 7x5y4)
D. 12x2(3x7y8 + 10y6 - 7x3y4)
Answer: A
Mathematics
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