Factor out the greatest common factor.72x8y9 + 36x2y5 + 81x5y2
A. 9x2y2(8x6y7 + 4y3 + 9x3)
B. 9(8x8y9 + 4x2y5 + 9x5y2)
C. x2y2(72x6y7 + 36y3 + 81x3)
D. 9x2(8x6y9 + 4y5 + 9x3y2)
Answer: A
Mathematics
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