Which of the following is a polynomial in \(x\) of degree 4?
Answer and explanation
Correct answer: \(x^4-2x+7\)
In option A, the greatest exponent of \(x\) is 4 and its coefficient is non-zero, so its degree is 4. The degrees of options B, C and D are 3, 2 and 1, respectively. Exam tip: The degree of a polynomial is the greatest exponent of the variable with a non-zero coefficient.
Frequently asked questions
What is the correct answer to this question?
\(x^4-2x+7\)
Why is this the correct answer?
In option A, the greatest exponent of \(x\) is 4 and its coefficient is non-zero, so its degree is 4. The degrees of options B, C and D are 3, 2 and 1, respectively. Exam tip: The degree of a polynomial is the greatest exponent of the variable with a non-zero coefficient.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Polynomials. Topic: Polynomials in one variable.
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