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
do not hesitate if you have any question
