This is similar to Problem 5 from your Section 4.2 worksheet.

Let $f(x)=x^2-19$, $g(x)=-7 x$, and $h(x)=5 x-3$. Find each of the following. Be sure to use a lowercase "x" when applicable.

$f(x)-g(x)=$
$f(3)-g(3)=$

$h(x)-f(x)=$
$h(-4)-f(-4)=$

$g(x)+f(x)=$
$g(5)+f(5)=$

$h(x)+f(x)-g(x)=$
$h(3)+f(3)-g(3)=$