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

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

If f(3) = 15 and f(5) = 45, which of the following could be f(x)? a. 4x + 3 b. 2x² – 2x c. 2x² - x d. 2x² - 5 e. 5x²

how much physical activity should an adult have each week

Why do we only see only one side of the moon from Earth A. the moon does not rotate B. the moon takes longer to rotate then to revolve around Earth C. the moon

the sum of 1/9 2/3 and 5/8 is

PROBABILITY PLEASE PLEASE HELP! TY! 1. How many arrangements can be made for an identification code consisting of any two letters except I and O, followed by a

The equation of a line is 5x − 2y + 10 = 0. How do you write it in the form: y=mx+b?

In a redox reaction, how does the total number of electrons lost by the oxidized substance compare to the total number of electrons gained by thereduced substan

During the 14th century, the Black Death became a widespread epidemic primarily because of 1) the resurgence of trade 2) Chinese overseas exploration 3) Europea

Why Is Diffusion Important To Plants And Animals?

a chef prepared five chocolate tortes for a dinner party. the guest consumed 2 5/16 tortes. how many tortes are left?