4*3^2x +5*3^x *4^x -9*16^x =0. Created by Fallengravos. matematika-ru

4*3^2x +5*3^x *4^x -9*16^x =0...

Fallengravos @Fallengravos

August 2022 1 5 Report

4*3^2x +5*3^x *4^x -9*16^x =0

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Alexаndr

Verified answer

$4*3^{2x} +5*3^x *4^x -9*16^x =0\\4*3^{2x} +5*3^x *4^x -9*4^{2x}=0|4^{2x}\\4*(\frac{3}{4})^{2x}+5*(\frac{3}{4})^{x}-9=0\\\frac{3}{4}^x_{1,2}=\frac{-5^+_-13}{8}\\\frac{3}{4}^x=1\ ;\frac{3}{4}^x=-\frac{9}{4}\\x=0$
(3/4)^x=-9/4 решений не имеет

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Answers & Comments

Verified answer

4^(x^2+x)-15=4^(2-x-x^2)...

2^(3*x+1)...

74^x-914^x+2*49^x=0...

9 reshit logarifmicheskoe neravenstvo

35x x5x3 x reshit

1 sam on ne pomnil nikogda kak bezhal lesom kak popal v selo i kak dobralsya do

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Answers & Comments

Verified answer

4^(x^2+x)-15=4^(2-x-x^2)...

2^(3*x+1)...

7*4^x-9*14^x+2*49^x=0...

9 reshit logarifmicheskoe neravenstvo

35x x5x3 x reshit

1 sam on ne pomnil nikogda kak bezhal lesom kak popal v selo i kak dobralsya do

рекомендуемые вопросы

Helpful Links

Helpful Social

74^x-914^x+2*49^x=0...