The inequality is .
Rewrite inequality as .
The function .
First solve the equation .
.
To find the solution of the inequality , use the intervals
and
.
Interval | \Number chosen | \value of ![]() | \
Conclusion | \
![]() | \
![]() | \
![]() | \
Negative | \
![]() | \
![]() | \
![]() | \
Positive | \
From the above table, conclude that for all numbers
for which
. \ \
Therefore, the solution of
is
or in interval notation
.
;
.