SOLUTION: Please help?? Solve for x(leave answer in exact form): 3^x=4 Solve for x:9^x+2 = 27

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: Please help?? Solve for x(leave answer in exact form): 3^x=4 Solve for x:9^x+2 = 27      Log On


   

Question 113445: Please help??
Solve for x(leave answer in exact form): 3^x=4
Solve for x:9^x+2 = 27
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
y=a^x
x=log(a)y
.
3^x=4
x=log(3)4
x=2*log(3)2
.
9^x+2=27
9^x=25
x=log(9)25
x=2*log(9)5
.
Ed