What is the degree of (15x^2+9x-4)?
Answer and explanation
Correct answer: 2
The degree of a polynomial is the greatest exponent of its variable with a non-zero coefficient. In the terms 15x^2, 9x, and -4, the powers of x are 2, 1, and 0 respectively. The greatest power is 2, so the degree is 2. Note that 15 is the coefficient of x^2, not the degree. Exam tip: To find the degree, look for the highest power of the variable, not the largest coefficient.
Frequently asked questions
What is the correct answer to this question?
2
Why is this the correct answer?
The degree of a polynomial is the greatest exponent of its variable with a non-zero coefficient. In the terms 15x^2, 9x, and -4, the powers of x are 2, 1, and 0 respectively. The greatest power is 2, so the degree is 2. Note that 15 is the coefficient of x^2, not the degree. Exam tip: To find the degree, look for the highest power of the variable, not the largest coefficient.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Introduction to Polynomials. Topic: Degree of a Polynomial.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
