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Is \(x^2+x^{-2}+x^0\) a polynomial?

Answer and explanation

Correct answer: No, it is not a polynomial because of \(x^{-2}\).

In a polynomial, all powers of the variable must be non-negative integers. Here, \(x^{-2}\) has a negative power, which is not allowed in polynomials. The term \(x^0=1\) is fine, but the presence of \(x^{-2}\) makes the expression not a polynomial. Therefore, it is not a polynomial.

Related tags

PolynomialsNegative ExponentDefinitionNon-Negative Powers

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