we have the inequality

step 1
Find out the first solution (positive case)

the first solution is the interval (-infinite, 5.5)
step 2
Find out tye second solution (negative case)

the second solution is the interval (3.5, infinite)
step 3
Find out the total solution
the solution is
(-infinite, 5.5) ∩ (3.5, infinite)=(3.5,5.5)
the solution is the interval (3.5,5.5)