What is the degree of (0x^4+7x^2-3x+1)?
Answer and explanation
Correct answer: 2
The coefficient of 0x^4 is 0, so it does not count as a term of the polynomial. The remaining polynomial is 7x^2-3x+1, whose highest power of x is 2. Therefore, its degree is 2. Choosing 4 is incorrect because the coefficient of x^4 is zero. Exam tip: Remove terms with zero coefficients before finding the degree.
Frequently asked questions
What is the correct answer to this question?
2
Why is this the correct answer?
The coefficient of 0x^4 is 0, so it does not count as a term of the polynomial. The remaining polynomial is 7x^2-3x+1, whose highest power of x is 2. Therefore, its degree is 2. Choosing 4 is incorrect because the coefficient of x^4 is zero. Exam tip: Remove terms with zero coefficients before finding the degree.
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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