What is the degree of the polynomial (8x^2+4x-9)?
Answer and explanation
Correct answer: 2
The degree of a polynomial is the highest exponent of the variable with a non-zero coefficient. The terms here are 8x^2, 4x, and -9. The greatest exponent of x is 2, so the polynomial has degree 2. The number 8 is a coefficient, not the degree. Exam tip: First simplify the polynomial, then identify the highest power of its variable.
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 highest exponent of the variable with a non-zero coefficient. The terms here are 8x^2, 4x, and -9. The greatest exponent of x is 2, so the polynomial has degree 2. The number 8 is a coefficient, not the degree. Exam tip: First simplify the polynomial, then identify the highest power of its 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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