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The video is not too clear. How is this done?
2^x=5^(x+2)
log(2^x)=log(5^(x+2))
x*log(2)=(x+2)log(5)
x*log(2)=x*log(5)+2log(5)
x*log(2)-x*log(5)=2log(5)
x(log(2)-log(5))=2log(5)
x=2log(5)/(log(2)-log(5)) -> exact solution
right