4^x*4+4*3^x=3^x*3^2-4^x
4*4^x+4^x=9*3^x-4*3^x
5*4^x=5*3^x
5*(4/3)^x=5
(4/3)^x=1^0
x=0
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4^x*4+4*3^x=3^x*3^2-4^x
4*4^x+4^x=9*3^x-4*3^x
5*4^x=5*3^x
5*(4/3)^x=5
(4/3)^x=1^0
x=0