Question 810517
I need help with Part A and Part B!!
a) If 7 ^ x = 43 , then x =         
(b) If 14 ^ ( -x ) = 2 , then x = 

a) If 7 ^ x = 43 
take log of each side
  log(7^x) = log(43)
  xlog(7) = log(43)
divide each side by log(7)
  x = log(43) / log(7)

b) 14^( -x ) = 2
take log of each side
log(14^x) = log(2)
xlog(14) = log(2)
     x = log(2) / log(14)