What is the degree of the polynomial (2x^4+5x^2-9)?
Answer and explanation
Correct answer: 4
The degree of a polynomial is the greatest exponent of the variable in any of its terms. Here, the exponents are 4, 2, and 0, and the greatest is 4. Therefore, the degree of the polynomial is 4. The exponent 2 belongs only to the term 5x^2. Exam tip: A non-zero constant term has degree 0.
Frequently asked questions
What is the correct answer to this question?
4
Why is this the correct answer?
The degree of a polynomial is the greatest exponent of the variable in any of its terms. Here, the exponents are 4, 2, and 0, and the greatest is 4. Therefore, the degree of the polynomial is 4. The exponent 2 belongs only to the term 5x^2. Exam tip: A non-zero constant term has degree 0.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Introduction to Polynomials. Topic: Degree of a Polynomial.
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