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5 x+\frac{1}{x}=6 \text { let's show } 25 x^{2}+\frac{1}{x^{2}}=26 |
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Answer» 5x+1/x=6by taking square25x^2+10+1/x^2=36so 25x^2+1/x^2=36-10=26 |
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