Question 37055
4 x 5^(X+2) = 5 x 4^(2X) 
Take the log of both sides to get:

log4+(x+2)log5 = log5+(2x)log4
log4+xlog5+2log5= log5+(2x)log4
x(log5-2log4)=-(log5+log4)
x(-0.50514998)=-1.30103000
x= -2.57553211
Cheers,
stan H.