Предмет: Математика, автор: krisotlova2005

СРОЧНО!!! (3у+1)(3у-1)-((3у-4) в квадрате)=7

Ответы

Автор ответа: 99tasha

9у²-1-(9у²-24у+16)=7

9у²-1-9у²+24у-16=7

24у=7+1+16

24у=24

у=24:24

у=1

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