Posted by Rachel on Sunday, February 13, 2011 at 4:31pm.
how do you solve the exponential equation, 12^x = 14^3x?
If someone could show me step by step I would greatly appreciate it.
thank you! :)

math  Henry, Tuesday, February 15, 2011 at 4:31pm
(12)^x = (14)^3x.
X*log12 = 3X*log14,
X * 1.08 = 3X * 1.15,
1.08X = 3.45X,
1.08X  3.45X = 0,
2.37X = 0,
X = 0 / 2.37 = 0.
CHECK:
(12)^0 = (14)^0,
Any number raised to the zero power=1:
1 = 1.