Which of the following polynomials is a cubic polynomial?
Answer and explanation
Correct answer: \(x^3-2x+1\)
A cubic polynomial has degree 3. In \(x^3-2x+1\), the highest power of the variable is 3, so it is a cubic polynomial. Option B has degree 2, option C has degree 1, and option D has degree 0. Exam tip: Identify the highest power of the variable with a non-zero coefficient to determine the degree.
Frequently asked questions
What is the correct answer to this question?
\(x^3-2x+1\)
Why is this the correct answer?
A cubic polynomial has degree 3. In \(x^3-2x+1\), the highest power of the variable is 3, so it is a cubic polynomial. Option B has degree 2, option C has degree 1, and option D has degree 0. Exam tip: Identify the highest power of the variable with a non-zero coefficient to determine the degree.
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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