The expression is \"\"

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Square on both sides.

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\"\"

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\"\"

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\"\"

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\"\"

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Add 1 to each side.

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\"\"

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Square on both sides.

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\"\"

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\"\"

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\"\"

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x = -2 and \"\".

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The roots of the polynomial \"\" are x = -0.6309, -1.52543 and 4.15633.

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Therefore solutions are x = -2, -0.6309, -1.52543 and 4.15633.

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 \"\"

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\"\"

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\"\"

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\"\"

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