Divide.(12x7 - 18x5 + 21x2) ÷ (-3x2)
A. 12x5 - 18x3 + 21
B. -4x5 + 6x3 - 7
C. -4x5 - 18x5 + 21x2
D. -4x7 + 6x5 - 7x2
Answer: B
Mathematics
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?
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