Question

How do you combine (6x² + 5xy - 2y²) - (-xy - 2x² - 4y²)?

Answer 1

`=color(blue)(8x^² +6xy +2y^²`

Explanation:

`6x^² + 5xy - 2y^² +xy +2x^² + 4y^²`

Grouping like terms :

`=(6x^² +2x^²) +( 5xy +xy) + (4y^²- 2y^² )`

`=8x^² +6xy +2y^²`