Question

If f(t)=4f^2-3 g(t)=t^2-8 find (f-g)(t)

Answer 1

`3t^2+5`

I assume you meant
`f(t)=4t^2 -3`.

`(f-g)(t)=f(t)-g(t) \\ \\ =(4t^2-3)-(t^2-8) \\ \\ =4t^2-3-t^2+8 \\ \\ =3t^2+5`