Simplify the polynomial by adding or subtracting, as indicated. Express your answer as a single polynomial in standard form.(8x2y - 12xy + 6) + (-7x2y + 5xy - 3)

A. x2y - 7xy + 3
B. -7x3y2 + 3
C. -x2y - 17xy + 9
D. 15x2y + 17xy + 9


Answer: A

Mathematics

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Perform the indicated multiplication. ? 

A. - 
B. - 
C. - 
D. - 

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