$\"\"$

The definition of product of the two functions is $\"\"$ .

$\"\"$

$\"\"$ (Distribute)

$\"\"$ (Simplify)

The domain of $\"\"$ consists of those numbers x that are in the domains of both f and g.

The domain of $\"\"$ is set of all real numbers. $\"\"$

The value of the function is $\"\"$ and the domain is set of all real numbers.