The logarithmic equation is $\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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x^7-2x^6+x^5-x^3-3x^2+3x+1=0

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Apply Power property of Logarithm : $\"\"$ .

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$\"\"$