Respuesta :

Adding the given algebraic expressions by taking like terms will give us: 4x² - 6y² + 5.

How to Add or Subtract Algebraic Expressions?

To add or subtract one algebraic expressions from the other, simply take like terms together.

Given the algebraic expressions:

3x² + xy - y² - 6x² - 4y²

2xy + y²

7x² - 3xy - 2y² + 5

If we are to add all together, we would get the following:

(3x² + xy - y² - 6x² - 4y²) + (2xy + y²) + (7x² - 3xy - 2y² + 5)

Open bracket and add like terms together

-3x² - 5y²  + xy + 2xy + y² + 7x² - 3xy - 2y² + 5

4x² - 6y² + 5

Learn more about algebraic expressions on:

https://brainly.com/question/2164351

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