mathdummie8080 mathdummie8080
  • 02-02-2015
  • Mathematics
contestada

9^x=27^(x+2)
how do I do that? I don't get how to do it with different bases

Respuesta :

konrad509
konrad509 konrad509
  • 02-02-2015
[tex]9^x=27^{x+2}\\ 3^{2x}=3^{3(x+2)}\\ 2x=3(x+2)\\ 2x=3x+6\\ 3x-2x=-6\\ x=-6[/tex]
Answer Link

Otras preguntas

Was the Gold Rush a good or bad thing for the United States?
A child is standing across the street from his apartment . His mother is on their balcony . The angle of elevation between the child's eyes and his mothers eyes
Why is RNA necessary to act as messenger?
When was William Shakespeare born
What is two thirds minus six thirds
A passenger on a boat moving at 1.70 m/s on a still lake walks up a flight of stairs at a speed of 0.60 m/s , as shown in the figure . The stairs are angled at
two identical freight cars roll without friction towards each other on a level track. one car rolls 2 m/s the other 1 m/s. after the cars collide they couple an
How is the numeral 35.012 written in words and why
is it possible for a distance versus-time graph to be a vertical line?
When was William Shakespeare born