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In which option is the degree of the polynomial (0)?

Answer and explanation

Correct answer: (-13)

A non-zero constant polynomial contains only a fixed number and no variable with a positive power. Such a polynomial has degree 0. The expression 0 is the zero polynomial, whose degree is not defined in the standard convention. The expression 13x has degree 1 because the highest power of x is 1, and x^2 - 13 has degree 2 because its highest power is 2.

Option B is -13, a non-zero constant, so its degree is 0. It is important not to confuse the number 0 with a non-zero constant: the former is the zero polynomial, while the latter has a defined degree of 0. Hence the selected answer follows directly from comparing the highest powers and the special rule for the zero polynomial.

Related tags

PolynomialDegree ZeroConstant

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