The original function is
Write as
or
First solve the case .
(Subtract 2 form each side)
(Additive inerse property:
)
(Additive identity property:
)
(Subtract:
)
Next solve the case .
(Subtract 2 form each side)
(Additive inerse property:
)
(Additive identity property:
)
(Subtract:
)
To graph the solutions set, first draw a number line.
\Draw a heavy line between -8 and 4. Since -8 and 4 are not included in the solution set draw a circle at -8 and 4.
\The solution set is