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Is (5x^2+3x+2x^{-1}) a polynomial or not?

Answer and explanation

Correct answer: नहीं, क्योंकि \(x^{-1}\) में \(x\) की घात ऋणात्मक है

In a polynomial, the powers of the variable must be 0 or positive integers. Here, \(2x^{-1}=\frac{2}{x}\), so the power of \(x\) is \(-1\). Therefore, the expression is not a polynomial. Having three terms or real coefficients alone does not make an expression a polynomial. Exam tip: Check first for negative or fractional powers, or a variable in the denominator.

Related tags

PolynomialsDefinition Of PolynomialNegative ExponentsAlgebraClass 9 MathematicsDefinition Of A PolynomialIntroduction To PolynomialsMathematics

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