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1.The expression 18x²y / 6x can be simplified as ______. *

A. 3xy
B. 3x / y
C. y / 3x
D. 1 / 3xy

2.Express ( + 2)³ as a polynomial. *

A. x³ + 12x² + 6x + 8
B. x³ + 6x² + 12x + 8
C. x³ + 8x² + 6x + 12
D. x³ + 6x² + 8x + 12​