Respuesta :

igoroleshko156

Answer:

[tex]7x^2 + 2x + 2[/tex]

Step-by-step explanation:

Step 1:  Combine

[tex]2x^2 + 3x - 7 + 5x^2 - x + 9[/tex]

[tex](2x^2 + 5x^2) + (3x - x) + (-7 + 9)[/tex]

[tex]7x^2 + 2x + 2[/tex]

Answer:  [tex]7x^2 + 2x + 2[/tex]

briannagatewood79
7x^2+2x+2 is the best answer