Respuesta :

Answer:

[tex]\boxed{\sf \ \ \ (f+g)(x)=-8x^2-x+14 \ \ \ }[/tex]

Step-by-step explanation:

Hello,

[tex]f(x)=-5x^2-8x+3 \ and\\g(x)=-3x^2+7x+11 \ so\\(f+g)(x)=f(x)+g(x)=-5x^2-8x+3-3x^2+7x+11\\=-8x^2-x+14[/tex]

hope this helps

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