# Tell whether the expression is a polynomial. If it is,

Tell whether the expression is a polynomial. If it is, give its degree. If it is not, state why not.
$\frac{{x}^{2}+5}{{x}^{3}-1}$
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David Clayton
Step 1:Given
$\frac{{x}^{2}+5}{{x}^{3}-1}$
Step 2:Solution
$\frac{{x}^{2}+5}{{x}^{3}-1}$
Since we have variables in both numerator and denominator, so it is not a polynomial.
Not a polynomial