The inequality is
.
Rewrite the inequality as
.
Related equation is
.
Since it is a quadratic equation, use quadratic formula to solve the related equation.
\Compare the above equation with standard form of quadratic equation
.
.
Quadratic formula
.
Substitute corresponding values in
.

and
.
and
.
Now write the inequality as
.
There are two ways this product could be less than or equals to zero.One factor must be negative or zero and one must be positive or zero.
\Case 1 :
\
and 
and
.
Thus, the solution set is 
There are no values exist in the above interval.
\Case 2 :
\
and 
and
.
Thus, the solution set is
.
\
The solution set of
is
.
The solution set of
is
.