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Why is \(x^2+\frac{3}{x^4}\) not a polynomial?

Answer and explanation

Correct answer: Because \(\frac{3}{x^4}=3x^{-4}\) has a negative exponent of \(x\)

Since \(\frac{3}{x^4}=3x^{-4}\), the expression contains \(x\) with exponent \(-4\). In a polynomial, the exponent of a variable must be 0 or a positive integer; negative exponents are not allowed. Having two terms or no constant term does not make an expression non-polynomial. Exam tip: If a variable is in the denominator, rewrite it with a negative exponent and check it.

Related tags

PolynomialsDefinition Of PolynomialNegative ExponentsAlgebraic ExpressionsClass 9 MathematicsDefinition Of A PolynomialIntroduction To PolynomialsMathematics

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