$\"\"$

The function is $\"\"$ .

$\"\"$ can be written as $\"\"$ .

Let $\"\"$ .

Graph the function $\"\"$ .

Draw the coordinate plane.

Graph :

$\"\"$

Observe the graph :

The graph $\"\"$ has no real zeros.

So there is no possibility of sign changes.

The solutions of $\"\"$ are $\"\"$ values such that $\"\"$ is positive.

Because $\"\"$ is positive for all real values of $\"\"$ the solution set is all real numbers.

The solution is $\"\"$ .

$\"\"$

The solution set of $\"\"$ is $\"\"$ .