SOLUTION: solve the following equation for x: 64=2^3x. a.x=1 b.x=2 c.x=2.5 d.x=3

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: solve the following equation for x: 64=2^3x. a.x=1 b.x=2 c.x=2.5 d.x=3      Log On


   

Question 146990: solve the following equation for x: 64=2^3x.
a.x=1
b.x=2
c.x=2.5
d.x=3
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
64=2%2A2%2A2%2A2%2A2%2A2=2%5E6
From your equation,
2%5E3x=2%5E6
The exponents on both side must equal.
3x=6
x=2
b)x=2