Решите уравнение х - 1/х = 6 целых 6/7. Created by dianazrachkova. matematika-ru

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Решите уравнение
х - 1/х = 6 целых 6/7

Answers & Comments

АринаАринина $x - \frac{1}{x} = 6 \frac{6}{7} 
$

$x - \frac{1}{x} = \frac{48}{7} / *x

$

$x^2 - 1 = \frac{48}{7}x / *7 
$

$7x^2 - 7 = 48

7x^2 - 7 - 48 = 0

7x^2 = 48 + 7

7x^2 = 52

x^2 = \frac{52}{7}$

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pravilno li ya sformulirovala predlozhenie ona pomogla vstat na nogi alekseyu

slovo vodorosli ot chego obrazovano

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privedite primery ne naturalnyh chisel

mozhno perenesti slovo po slogam dosto yanie

koren slova dostoyanie peredannoe

perevedite what is the russian for fun come to the board hooray

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