$\"\"$

The function is $\"\"$ .

Rewrite the equality

$\"\"$

Let $\"\"$ .

Graph :

Graph the function $\"\"$ .

$\"\"$

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 negative or equal to $\"\"$ .

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

The solution is $\"\"$ .

$\"\"$

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