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Which option is correct about the zero polynomial and a non-zero constant polynomial?

Answer and explanation

Correct answer: The zero polynomial degree is not defined and a non-zero constant has degree (0)

A polynomial’s degree is the greatest exponent of the variable having a non-zero coefficient. A non-zero constant, such as 7 or -3, has no variable term, so it is treated as having degree 0. The zero polynomial is different because every coefficient is zero, so it has no greatest non-zero exponent. Therefore, its degree is not defined in the usual school-level convention.

Thus option B is correct: the zero polynomial has an undefined degree, while a non-zero constant polynomial has degree 0. Option A is wrong because degree 0 applies to non-zero constants, not to the zero polynomial. The other options incorrectly reject polynomials or assign degree 1.

Related tags

PolynomialZero PolynomialConstant Degree

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