Answer:
[tex](h+g)(10) = 2691[/tex]
Step-by-step explanation:
[tex]h(x) = 3x^3\\g(x) = -4x+1[/tex]
Adding both equations will make it:
[tex](h+g)(x) = 3x^3-4x+1[/tex]
Putting x = 10 will make it:
[tex](h+g)(10) = 3(10)^3-4(10)+1[/tex]
= 3(1000)-40+1
= 3000-39
= 2961
