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If a = 0, b ≠ 0, and c ≠ 0 in p(x) = ax⁵ + bx⁴ + cx³ + d, what will be the degree of p(x)?

Answer and explanation

Correct answer: 4

The degree of a nonzero polynomial is the greatest exponent whose coefficient is nonzero. Because a = 0, the term ax⁵ disappears. Since b ≠ 0, the term bx⁴ remains and has the highest surviving power; c ≠ 0 also confirms a lower x³ term remains. Thus p(x) has degree 4, so option B is correct.

Related tags

PolynomialsDegreeCoefficientsZero CoefficientMathematicsClass 10 McqPolynomials In One Variable

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