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X²- 5x=1 find x²+1/x² |
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Answer» 5X = 1 x² - 1 = 5x (dividing the EQUATION by x) x - 1/x = 5 (SQUARING both sides) (x - 1/x)² = 5² x² + 1/x² - 2 = 25 x² + 1/x² = 25 +2 x² + 1/x² = 27 HOPE IT WILL HELP YOU. :-) |
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