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Is (7x/3 + 4) a polynomial in x?

Answer and explanation

Correct answer: Yes, because the power of x is 1

Option B is correct. A polynomial in x is an expression in which the exponent of x in every term is a non-negative integer: 0, 1, 2, and so on. The coefficients may be integers, fractions, decimals, or other real numbers. We can write the expression as (7/3)x^1 + 4x^0. The exponents are 1 and 0, so both satisfy the definition, and the highest exponent is 1; therefore it is a linear polynomial. The fraction 7/3 is only a coefficient and does not make the expression invalid. The constant 4 is also permitted because it represents 4x^0. Finally, a binomial simply has two terms, and a binomial can certainly be a polynomial. Hence option B is the only correct choice.

Related tags

Fractional-CoefficientLinear-PolynomialPolynomial-DefinitionDefinition Of A PolynomialIntroduction To PolynomialsMathematicsClass 9 Mcq

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