The equation is
.
Take out common factors.
\
Rewrite the equation
.
Group terms with common factors.
\
Factor the G.C.F from each grouping.
\
Combine like terms using distributive property:
.


\
Take square root on each side.
\

Apply subtraction property of equality: If a = b then a
b = b
a.
Subtract 2 from each side.
\
Apply additive inverse property:
.


Divide each side by 3.
\

Check:
\To check the solution substitute
in
.




Product of two different sings is negative.
\


The solution
is true.
The values of
.