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Class 9 Mathematics Introduction to Polynomials Definition of a PolynomialExpert

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If (p(x)=(a^2-4)x^4+(a+2)x^3+5x+1) has degree exactly (3), what is the value of (a)?

Answer and explanation

Correct answer: (2)

For degree (3), the (x^4) coefficient must be zero and the (x^3) coefficient must be non-zero. At (a=2), (a^2-4=0) and (a+2=4).

Related tags

Definition-Polynomial Degree-Three Parameter Definition Of A Polynomial Introduction To Polynomials Mathematics Class 9 Mcq

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