To add the given expressions, combine like terms by grouping terms with the same variables and exponents. The final result will have terms with x and y, as well as x^2 and xy.
To add the given expressions, we combine like terms. First, let's add the coefficients of the terms with the same variables and exponents. The final result will have terms with x and y, as well as x^2 and xy. Therefore, the sum of the given expressions is:
x³ - 2x²y + 3xy - y³ + 2x² – 5xy² + 3x²y - 4y³ = x³ + 2x² - 2x²y + 3x²y + 3xy - 5xy² + 4y³ - y³ = x³ + 2x² + xy - 5xy² - y³ + 4y³
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