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 .