Which polynomial has degree (5)?
Answer and explanation
Correct answer: \(6x^5-2x+7\)
The degree of a polynomial is the greatest exponent of its variable with a non-zero coefficient. In \(6x^5-2x+7\), the greatest exponent of \(x\) is 5, so its degree is 5. Option A has degree 4, while option C has degree 6. Option D is a non-zero constant polynomial, so its degree is 0. Exam tip: identify the highest power of the variable to find the degree.
Frequently asked questions
What is the correct answer to this question?
\(6x^5-2x+7\)
Why is this the correct answer?
The degree of a polynomial is the greatest exponent of its variable with a non-zero coefficient. In \(6x^5-2x+7\), the greatest exponent of \(x\) is 5, so its degree is 5. Option A has degree 4, while option C has degree 6. Option D is a non-zero constant polynomial, so its degree is 0. Exam tip: identify the highest power of the variable to find the degree.
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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