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Which of the following expressions is not a polynomial?

Answer and explanation

Correct answer: \(\frac{3}{x}+2\)

In a polynomial, each variable has a zero or positive integer exponent. Since \(\frac{3}{x}=3x^{-1}\), the exponent of \(x\) is \(-1\), so it is not a polynomial. \(\sqrt{2}\) may be a coefficient. Exam tip: a variable in the denominator indicates a non-polynomial.

Related tags

PolynomialsAlgebraic ExpressionsExponentsClassificationClass 9 MathematicsIntroduction To PolynomialsMathematicsClass 9 Mcq

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