Question 799369
Find the exact solution 8^(x-1)=16^(x+3) 
----------
Change both sides to base "2":::
(2^3)^(x-1) = (2^4)^(x+3)
----------
= 2^(3x-3) = 2^(4x+12)
----------
= 3x-3 = 4x+12
x = -15
-----------------
Cheers,
Stan H.
=================