noahharris2365 noahharris2365
  • 19-11-2019
  • Mathematics
contestada

solve 4^(5x)=16^(2x-1)

Respuesta :

tasharag03 tasharag03
  • 19-11-2019

Answer:

x=-2

Step-by-step explanation:

Answer Link
nandhini123
nandhini123 nandhini123
  • 22-11-2019

Answer: x= -2

Explanation:

Given the equation

[tex]4^{5x}=(16)^{(2x-1)}[/tex]

Now, we can also write the above equation as  

[tex]4^{5x}=(4)^{2(2x-1)}[/tex]

[tex]4^{5x}=(4)^{(4x-2)}[/tex]

Now, taking log on both sides

[tex]log(4^{5x} )=log(4^{4x-2)}[/tex]

So, the above the equation can be written as  

5x=4x-2

Simplifying the equation,

5x-4x=2

x= -2

Hence, the value of x = -2. Which satisfy the given equation in the question.  

Answer Link

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