Question

What must be added 3x²-3xy+5y² to get the sum 2x²+2xy-2y² ?

Answer 1

Answer:

Step-by-step explanation:

Hello Friends

2x²+2xy-2y² - 3x²-3xy+5y²

= -x²+5xy-7y²

Hope this answer will be helpful to you

If yes then please mark me as the brainlist ..

Answer 2

Answer:

- x² + 5xy - 7y²

Step-by-step explanation:

(2x² + 2xy - 2y²) - (3x² - 3xy + 5y²)

2x² + 2xy - 2y² - 3x²+ 3xy - 5y²

2x² - 3x²+ 2xy  + 3xy - 2y²  - 5y²

=  - x² + 5xy - 7y²

hope it helps... :)

plss mark as brainliest...