Answer:
-8x^2y
Explanation:
First collect like terms of xy^2 and 4xy^2(since their variables and deggres are the same) and you get: 5xy^2 - 2x^2y + 3y^3 - 6x^2y
Then collect like terms of -2x^2y and -6x^2(since their variables and deggres are the same) and you get: 5xy^2 - 8x^2y + 3y^2
The problem states "which must be the first term of her polynominal in standard form?"
That means that the polynominal Alina is talking about is -8x^2y.