$\"\"$

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The equation is $\"\"$ .

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Solve the equation.

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$\"\"$ (Original equation)

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$\"\"$ (Square on each side)

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$\"\"$ (Cancel square and root terms)

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$\"\"$ (Apply differences of squares: $\"\"$ )

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$\"\"$ (Evaluate power $\"\"$ )

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

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

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$\"\"$ (Subtraction: $\"\"$ )

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

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

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

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$\"\"$ (Factors of equation)

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$\"\"$ (Factors of group terms)

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$\"\"$ (Take out common terms)

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$\"\"$ and $\"\"$ (Separate solutions)

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$\"\"$ and $\"\"$ (Simplify)

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Therefore, the value of $\"\"$ are $\"\"$ and $\"\"$ .

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$\"\"$

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Check the solutions for $\"\"$ -values:

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Case(i): $\"\"$

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$\"\"$ (Original equation)

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$\"\"$ (Substitute $\"\"$ in the equation)

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$\"\"$ (Multiply)

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

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

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Therefore the value of $\"\"$ is $\"\"$ does not satisified the equation.

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Case(ii): $\"\"$

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$\"\"$ (Original equation)

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$\"\"$ (Substitute $\"\"$ in the equation)

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$\"\"$ (Multiply)

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

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

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Therefore, the value of $\"\"$ is $\"\"$ satisified the equation.

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$\"\"$

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The value of $\"\"$ is $\"\"$ .