What is the degree of the polynomial (x^2+x^7+5x)?
Answer and explanation
Correct answer: 7
The degree of a polynomial is the greatest exponent of the variable among its terms with non-zero coefficients. Here, the exponents are 2, 7, and 1. The greatest exponent is 7, so the degree of the polynomial is 7. Option 2 is only the exponent of the first term, x^2, not of the whole polynomial. Exam tip: Ignore the order of terms and identify the highest exponent of the variable.
Frequently asked questions
What is the correct answer to this question?
7
Why is this the correct answer?
The degree of a polynomial is the greatest exponent of the variable among its terms with non-zero coefficients. Here, the exponents are 2, 7, and 1. The greatest exponent is 7, so the degree of the polynomial is 7. Option 2 is only the exponent of the first term, x^2, not of the whole polynomial. Exam tip: Ignore the order of terms and 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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