вычислите пж 106^2-121/122^2-64 с образцом ответ:39/52. Created by medetbaevainara0708. algebra-ru

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вычислите пж 106^2-121/122^2-64 с образцом ответ:39/52

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nadelyaev2002 $\frac{106^2-121}{122^2-64}= \frac{106^2-11^2}{122^2-8^2}= \frac{(106-11)(106+11)}{(122-8)(122+8)}= \frac{95*117}{114*130}= \frac{19*39}{38*26}= \frac{39}{52}= \frac{3}{4};$

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