Question 937500
Rules of exponents is how.


{{{x^4/(x^1)=(x^3)(x/x)=x^3*1=x^3}}}
but also
{{{x^4/x^1=x^(4-1)=x^3}}}


{{{x^2/x^1=x*x/x=x^1=x}}}
but also
{{{x^2/x=x^(2-1)=x^1=x}}}


Any real number , especially rational number r,
{{{x^r/x^r=1}}}, already easily understood from rules for fractions.


{{{x^r/x^r=x^(r-r)=x^0}}}

As already understood, {{{x^r/x^r=1=x^0}}}