Math, asked by ixr38deepika, 12 days ago

If x2 +1/x ^2 =27, find x-1/x​

Answers

Answered by sandy1816
4

\huge\underline\bold\red{★Answer★}

 {x}^{2}  +  \frac{1}{ {x}^{2} }  = 27 \\ ( {x -  \frac{1}{x} })^{2}  + 2 = 27 \\ ( {x -  \frac{1}{x} })^{2}  = 25 \\ x -  \frac{1}{x}  = ±5

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