The equation is .
The standard form of quadratic equation in - variables is
,where
.
Graph:
\Graph the related function .
Observe the graph:
\The -intercepts of the graph appear to be at
and
.
Therefore, the solutions are and
.
Check:
\Case(i): .
(Original equation)
(Substitute
in the original equation)
(Multiply)
(Simplify)
Case(ii): .
(Original equation)
(Substitute
in the original equation)
(Multiply)
(Simplify)
The solutions are and
.
The solutions are and
.