Автор - Gershanik2012

2^(2x-4)=9 help me please!!!!!!!!!

Ответ

Проверено экспертом

Автор - arsenlevadniy
2^{2x-4}=9, \ <br />
log_{2}{2^{2x-4}}=log_{2}{9}, \ <br />
(2x-4)log_{2}{2}=log_{2}{9}, \ <br />
2x-4=log_{2}{9}, \ <br />
2x = 4+log_{2}{9}, \ <br />
x =2+ frac{1}{2}log_{2}{9}, \ x =2+log_{2}{9^{ frac{1}{2}}}, \ x =2+log_{2}{3}.

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