What is the degree of (x^{10}+2x^4-9x)?
Answer and explanation
Correct answer: 10
The degree of a polynomial is the greatest exponent of the variable among its terms. Here, the exponents are 10, 4, and 1, and the greatest is 10. Therefore, the correct answer is 10. The number 4 is only the exponent in the term 2x^4, not the degree of the entire polynomial. Exam tip: simplify the polynomial first, then identify the highest power of the variable.
Frequently asked questions
What is the correct answer to this question?
10
Why is this the correct answer?
The degree of a polynomial is the greatest exponent of the variable among its terms. Here, the exponents are 10, 4, and 1, and the greatest is 10. Therefore, the correct answer is 10. The number 4 is only the exponent in the term 2x^4, not the degree of the entire polynomial. Exam tip: simplify the polynomial first, then identify the highest power 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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