What is the simplest form of -3x 2 + 2y 2 + 5xy - 2y + 5x 2 - 3y 2

 -3x^2 + 2y^2 + 5xy - 2y + 5x^2 - 3y       combine like terms

2x^2 +  2y^2  - 5y + 5xy