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Which of the following expressions is a polynomial in one variable \(x\)?
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Answer and explanation
Correct answer: \(7x^2-3x+1\)
In \(7x^2-3x+1\), the powers of \(x\) are 2, 1 and 0, all non-negative integers, so it is a polynomial in one variable. \(\frac{1}{x}\) has power \(-1\). Exam tip: polynomial exponents must be 0, 1, 2, ... .
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What is the correct answer to this question?
\(7x^2-3x+1\)
Why is this the correct answer?
In \(7x^2-3x+1\), the powers of \(x\) are 2, 1 and 0, all non-negative integers, so it is a polynomial in one variable. \(\frac{1}{x}\) has power \(-1\). Exam tip: polynomial exponents must be 0, 1, 2, ... .
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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