Показательные уравнения. 1. [tex]4^x*5^{x-1}=0,2* 20^{3-2x} [/tex]. Created by Yana4660. algebra-ru

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Yana4660 @Yana4660

July 2022 1 7 Report

Показательные уравнения.
1. [tex]4^x*5^{x-1}=0,2* 20^{3-2x} [/tex]

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$4^x*5^{x-1}=0.2*20^{3-2x}$

$\frac{4^x*5^x}{5}= \frac{20^3}{5* 20^{2x} }$

$20^x= \frac{20^3}{ 20^{2x}} 

20^x* 20^{2x}=20^3 

20^{3x}=20^3

3x=3

x=1$

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Kasper93 Куда два знаменателя числа 5 ушли?

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