Determine whether the given is a rational function, a rational equation, a rational inequality or none of these.

1.)y=5x³-2x+1
2.)8/x-8=x/2x-1
3.)√X-2=4
4.)X-1/X+1=X²
5.)g(x)=7x³-4√X+1/x³+3
6.)6x-5/x+3>0
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