Решите уравнение: 8*3^х-3^х-1=45. Created by lizaprodigy. algebra-ru

Решите уравнение: 8*3^х-3^х-1=45...

August 2022 1 3 Report

Решите уравнение:
8*3^х-3^х-1=45

Answers & Comments

red321 $8*3^x-3^{x-1}=45\\3^{x-1}(8*3-1)=45\\3^{x-1}*23=45\\3^{x-1}=\frac{45}{23}\\3^{x-1}=3^{log_3\frac{45}{23}}\\x-1=log_3\frac{45}{23}\\x=log_3\frac{45}{23}-1$

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Answers & Comments

pervaya truba propuskaet na 2 litra vody v minutu menshe chem vtorayaskolko litrc579faa008fdfd5010a548d8bf7890ca 19089

chto poluchayut pri okislenii etilena permanganatom kaliya

pravilnaya chetyrehugolnaya prizma opisana okolo cilindra radius osnovaniya kotoro

pomogite reshit zadachkub0c18133a41a6b42215d00ba4dd1270e 95083

iz punkta a v punkt v odnovremenno vyehali dva avtomobilya pervyj proehal s post

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