$\"\"$

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The given expression is $\"\"$ .

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$\"\"$ (Subtract 1 from each side)

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

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

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

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

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

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

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$\"\"$ (Divide each side by 10)

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$\"\"$ (Cancel common term)

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$\"\"$ (Divide: $\"\"$ )

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$\"\"$

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The equation $\"\"$ , on substitute $\"\"$ .

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$\"\"$ \ \

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$\"\"$ (Multiply: $\"\"$ )

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

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

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The check solution is true. $\"\"$

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The solution is $\"\"$ .