Multiply the polynomials using the FOIL method. Express the answer as a single polynomial in standard form.(3x + 10y)(-3x + 7y)
A. -9x2 - 30xy + 70y2
B. -9x2 - 9xy - 9y2
C. -9x2 + 21xy + 70y2
D. -9x2 - 9xy + 70y2
Answer: D
Mathematics
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- 6
A. 
B. 
C. 
D. 
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