Respuesta :
Answer:
Step-by-step explanation:
hello,
[tex]f(x)=-x^2+3x+5\\g(x)=x^2+2x \ \ \ so \ \ \ \\\(f+g)(x)=f(x)+g(x)=-x^2+3x+5+x^2+2x=5x+5\\[/tex]
this is a line, graph below
hope this helps

Answer:
Step-by-step explanation:
hello,
[tex]f(x)=-x^2+3x+5\\g(x)=x^2+2x \ \ \ so \ \ \ \\\(f+g)(x)=f(x)+g(x)=-x^2+3x+5+x^2+2x=5x+5\\[/tex]
this is a line, graph below
hope this helps