Algebra 2
posted by Lily .
Solve 12^x = 14^3x.
I know I need to make the bases the same, but I don't know how.

just take log of both sides
x log12 = 3x log14
x(log12  3log14) = 0
x=0
the two exponential functions both pass through (0,1), but that is the only intersection.