The inequality is .
is non negative.
The inequality can be written as
\Let .
The zeros of are at
and
.
Case 1 :
\.
and
.
and
.
Case 2 :
\.
and
and
.
The zeros of are at
and
.
Draw a sign chart by using the values and
.
Note : The solid circle denote that the value are included in the solution set.
\Observe the sign chart :
\The set of value of denoted in blue color represents the solution set.
The solutions of are
values such that
is positive or equal to
.
From the sign chart the solution is or
.
From the sign chart,the solution set is .
The solution set of is
.