Simplify the polynomial by adding or subtracting, as indicated. Express your answer as a single polynomial in standard form.(10x5y3 + 6x3y2 + 9xy) + (11x5y3 + 4x3y + 8xy)
A. 21x5y3 + 10x3y + 17xy
B. 21x5y3 + 6x3y2 + 4x3y + 17xy
C. 10x6y3 + 21x5y3 + 17xy
D. 21x5y3 + 10x3y2 + 17xy
Answer: B
Mathematics
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