$\"\"$

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The equation is $\"\"$ .

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Solve the equation.

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$\"\"$ (Original equation)

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$\"\"$ (Subtract $\"\"$ from each side)

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

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

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Case(i):

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$\"\"$ (First equation)

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

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

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

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Case(ii):

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$\"\"$ (Second equation)

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

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

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

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

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$\"\"$

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

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Case(i): $\"\"$

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$\"\"$ (Original equation)

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

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

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

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

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Case(ii): $\"\"$

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$\"\"$ (Original equation)

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

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

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

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

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The equation is never true. $\"\"$

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The solution set is $\"\"$ .