Найдите значение выражения 18×(дробь1/9)^2-20×1/9дробь. Created by genyadonskh01. algebra-ru

9дробь...

нптшрро 18 х ( 1/9) ^2 - 20 x 1/9
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1) ( 1/9)^2 = 1/81
2) 18 x 1/81 = 18/81
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3) 20 x 1/9 = 20/9
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4) 18/81 - 20/9 = 18/81 - 180/81 = ( - 162/81 ) = ( - 2 )
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Ответ минус 2

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lumeire $18* (\frac{1}{9})^{2} -20* \frac{1}{9}$ = -2

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