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Class 10MathematicsPolynomialsPolynomials in one variableHardLevel 47
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If the degree of (p(x)=(a-5)x^5+2x^3-7x+4) is (3), what is (a)?

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Answer and explanation

Correct answer: (5)

For the degree to be (3), the coefficient of (x^5) must be (0), so (a-5=0). First make the highest-degree term vanish.

Related tags

DegreeParameterPolynomial

Frequently asked questions

What is the correct answer to this question?

(5)

Why is this the correct answer?

For the degree to be (3), the coefficient of (x^5) must be (0), so (a-5=0). First make the highest-degree term vanish.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Polynomials. Topic: Polynomials in one variable.

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