Answer: 10xy³ - x²y + 3xy
Explanation:
To simplify the expression (3xy³ + 8x²y - 3xy) + (7xy³ - 9x²y + 6xy), we can combine like terms.
Adding the corresponding terms together, we have:
3xy³ + 7xy³ = 10xy³
8x²y - 9x²y = -x²y
-3xy + 6xy = 3xy
Combining these terms, the simplified expression becomes:
10xy³ - x²y + 3xy
Therefore, the correct option is:
O 10xy³ - x²y + 3xy