Answer:
5x² - 2x - 7
Step-by-step explanation:
(3x² + +x – 14) + (2x² – 3x + 7)
Remove parenthesis
3x² + x - 14 + 2x² - 3x + 7
Combine like terms ( like terms are those that have the same variable and degree, ex. 2x² and 3x² are like terms as they both have x as a variable and a degree of 2 )
3x² + 2x² = 5x²
x - 3x = -2x
-14 + 7 = -7
We then add everything back up
5x² - 2x - 7 should be the answer
