Question

f(x)=x^2+1, g(x)=x-2
(f+g)(t-8)

Answer 1

is there another function for t?

Answer 2

no

Answer 3

thats why im confused

Answer 4

\[f(x)=x^2+1\\f(t-8)=(t-8)^2+1\] clean up with some algebra
\[g(x)=x-2\\
g(t-8)=t-8-2\] clean up with some arithmetic
then for \(f+g\) put a plus sign between them

Answer 5

Thank you @satellite73 I got it right!