HatfieldMC HatfieldMC
  • 22-04-2020
  • Mathematics
contestada

3^(x-2) = 5^(x+1)
solve algebraically plz help I don't get any of this
step by step plz
thanks

Respuesta :

crangado2 crangado2
  • 22-04-2020

Answer:

[tex]x=log_{\frac{3}{5} }(45)[/tex]

[tex]x-2=log_{3}(5)x+log_{3}(5) \\x-log_{3}(5)x=log_{3}(5)+2\\(1-log_{3}(5))x=log_{3}(5)+2\\x=\frac{log_{3}(5)+2}{1-log_{3}(5)} \\x=\frac{log_{3}(5)+log_{3}(3^2)}{log_{3}(3)-log_{3}(5)} \\x=\frac{log_{3}(5x3^2)}{log_{3}(\frac{3}{5} )} \\x=\frac{log_{3}(5x9)}{log_{3}(\frac{3}{5} )} \\x=\frac{log_{3}(45)}{log_{3}(\frac{3}{5} )}\\x=log_{\frac{3}{5}}(45)[/tex]

Hope this helps you :)

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