Question

2x² +xy -y² , -x² +2xy +3y² and 3x² -10 xy +4y²​

Answer 1

Answer:

4x²-7xy6y²

Step-by-step explanation:

First group all the variable to add

(2x²-x²+3x²)+(xy+2xy-10xy)+(-y²+3y²+4y²)

then do the calculation inside the brackets and after that open the brackets. hope it helped you