$\"\"$

\

The functions are $\"\"$ and $\"\"$ .

\

Find $\"\"$ .

\

$\"\"$ (Addition of functions formula)

\

$\"\"$ (Substitute $\"\"$ and $\"\"$ )

\

$\"\"$ (Combine like terms)

\

Find $\"\"$ .

\

$\"\"$ (Subtraction of functions formula)

\

$\"\"$ (Substitute $\"\"$ and $\"\"$ )

\

$\"\"$ (Distributive property: $\"\"$ )

\

$\"\"$ (Combine like terms)

\

Find $\"\"$ .

\

$\"\"$ (Multiplication of functions formula)

\

$\"\"$ (Substitute $\"\"$ and $\"\"$ )

\

$\"\"$ (Distributive property: $\"\"$ )

\

$\"\"$ (Multiply)

\

$\"\"$ (Combine like terms)

\

Find $\"\"$ .

\

$\"\"$ (Division of functions formula)

\

$\"\"$ (Substitute $\"\"$ and $\"\"$ )

\

$\"\"$ .

\

Since $\"\"$ makes the denominator $\"\"$ , $\"\"$ is excluded from the domain of $\"\"$ .

\

$\"\"$

\

$\"\"$ , $\"\"$ , $\"\"$ and $\"\"$ .