Which polynomial has degree (7)?
Answer and explanation
Correct answer: \(4x^7-x^2+5\)
The degree of a polynomial is the highest power of its variable with a non-zero coefficient. In \(4x^7-x^2+5\), the highest power of \(x\) is 7, so its degree is 7. \(2x^6+3\) has degree 6, whereas \(19\) is a constant polynomial with degree 0. Exam tip: First write the polynomial in simplified form, then identify the highest exponent of the variable.
Frequently asked questions
What is the correct answer to this question?
\(4x^7-x^2+5\)
Why is this the correct answer?
The degree of a polynomial is the highest power of its variable with a non-zero coefficient. In \(4x^7-x^2+5\), the highest power of \(x\) is 7, so its degree is 7. \(2x^6+3\) has degree 6, whereas \(19\) is a constant polynomial with degree 0. Exam tip: First write the polynomial in simplified form, then identify the highest exponent of the variable.
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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