Respuesta :

Distribute the negative sign

[tex]7x^2-3x-6[/tex]

Combine like terms

-9x^2 + 7x^2 = -2x^2

9x - 3x = 6x

13 - 6 = 7

[tex]-2x^2 +6x + 7[/tex]

Answer

[tex]-2x^2 +6x + 7[/tex]