Which option does not have degree (7)?
Answer and explanation
Correct answer: \(7x^6+5\)
The degree of a polynomial is the greatest exponent of the variable with a non-zero coefficient. In \(7x^6+5\), the highest power of \(x\) is 6, so its degree is 6, not 7. In contrast, \(x^7+2\) has the term \(x^7\), so its degree is 7. Exam tip: Simplify the polynomial first, then identify the highest exponent of the variable.
Frequently asked questions
What is the correct answer to this question?
\(7x^6+5\)
Why is this the correct answer?
The degree of a polynomial is the greatest exponent of the variable with a non-zero coefficient. In \(7x^6+5\), the highest power of \(x\) is 6, so its degree is 6, not 7. In contrast, \(x^7+2\) has the term \(x^7\), so its degree is 7. Exam tip: Simplify the polynomial first, 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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