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Which statement is correct about the degree of the zero polynomial (p(x)=0)?

Answer and explanation

Correct answer: Degree is undefined

The direct answer is option C: the degree of the zero polynomial is undefined. The degree of a non-zero polynomial is the highest power of the variable having a non-zero coefficient. For example, the degree of \(3x^2+1\) is 2. But the zero polynomial \(p(x)=0\) has no non-zero term and therefore has no highest non-zero power. By the standard school convention, its degree is not defined. Option A, degree 0, is a common mistake: a non-zero constant such as 5 has degree 0, but the zero polynomial is special. Option B, degree 1, has no basis because there is no x-term. Option C is correct. Option D, degree 2, is also unsupported because there is no quadratic term. Do not confuse the zero polynomial with a constant non-zero polynomial. Exam cue: degree 0 belongs to non-zero constants; the zero polynomial has undefined degree.

Related tags

Zero PolynomialDegreeConcept

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