Respuesta :

Answer:

hope this helps!! :3

Step-by-step explanation:

(x^2 + 2x + 8) + (-x^2 - 3x - 7)

Simplify the terms inside the parentheses:

x^2 + 2x + 8 + (-x^2 - 3x - 7)

Combine like terms on the left:

x^2 + 2x + 8 - x^2 + 3x + 7

Combine like terms on the right:

(2x - x + 8) + (3x + 7)

Combine like terms:

5x + 5