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If (p(x)=x^4+cx^3+dx^2+e), under what condition is its degree definitely (4)?

Answer and explanation

Correct answer: For any values of (c), (d) and (e)

The degree of a polynomial is the greatest exponent of the variable whose coefficient is non-zero. Here, the coefficient of (x^4) is (1), which cannot become zero for any values of (c), (d), and (e). Hence, the degree is definitely (4). Setting (c), (d), or (e) to zero affects only lower-degree terms, not the (x^4) term. Exam tip: always check the coefficient of the highest-power term before deciding the degree.

Related tags

PolynomialsDegree Of PolynomialLeading CoefficientClass 9 MathematicsAlgebraDefinition Of A PolynomialIntroduction To PolynomialsMathematics

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