teflonsr teflonsr
  • 01-06-2017
  • Mathematics
contestada

Solve the equation using propertis of logarithms and exponents.

9^6x=3^2x+4

Respuesta :

irspow
irspow irspow
  • 01-06-2017
9^(6x)=3^(2x+4)  I assume this is what you meant...

since 9=3^2

3^2^(6x)=3^(2x+4)

and since (a^b)^c=a^(bc)

3^(12x)=3^(2x+4)

so if a^b=a^c then b=c so

12x=2x+4

10x=4

x=0.4
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