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Is x²/4 − 2x/3 + 6 a polynomial in x?

Answer and explanation

Correct answer: Yes, because the powers of x are 2, 1, and 0

Yes, the expression is a polynomial in x. A polynomial may have fractional or rational coefficients; the essential requirement is that the exponents of the variable are non-negative integers. Here x²/4 has exponent 2, −2x/3 has exponent 1, and 6 is a constant with exponent 0. Therefore all terms meet the definition. Fractions, subtraction, and having three terms do not disqualify an expression.

Related tags

PolynomialRational-CoefficientsExponentsDefinitionDefinition Of A PolynomialIntroduction To PolynomialsMathematicsClass 9 Mcq

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