$\"\"$

\

The equation is $\"\"$ .

\

Solve the equation.

\

$\"\"$ (Original equation)

\

$\"\"$ (Divide each side by $\"\"$ )

\

$\"\"$ (Cancel common terms)

\

Case(i):

\

$\"\"$ (First equation)

\

$\"\"$ (Add $\"\"$ to each side)

\

$\"\"$ (Apply additive inverse property: $\"\"$ )

\

$\"\"$ (Add: $\"\"$ )

\

Case(ii):

\

$\"\"$ (Second equation)

\

$\"\"$ (Add $\"\"$ to each side)

\

$\"\"$ (Apply additive inverse property: $\"\"$ )

\

Therefore, the solutions are $\"\"$ and $\"\"$ .

\

$\"\"$

\

Check for solution for $\"\"$ -values.

\

Case(i): $\"\"$

\

$\"\"$ (Original equation)

\

$\"\"$ (Substitute $\"\"$ )

\

$\"\"$ (Subtract: $\"\"$ )

\

$\"\"$ (Substitute: $\"\"$ )

\

$\"\"$ (Multiply)

\

Case(ii): $\"\"$

\

$\"\"$ (Original equation)

\

$\"\"$ (Substitute $\"\"$ )

\

$\"\"$ (Subtract: $\"\"$ )

\

$\"\"$ (Substitute: $\"\"$ )

\

$\"\"$ (Multiply)

\

Two solutions are $\"\"$ and $\"\"$ .

\

$\"\"$

\

The solution set is $\"\"$ .