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Class 10MathematicsPolynomialsPolynomials in one variableEasyLevel 47
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What is the coefficient of x in the polynomial x² − 7x?

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Answer and explanation

Correct answer: −7

In the standard form ax² + bx + c, the coefficient of x is b. Here, the x-term is −7x, so its coefficient is −7. Option 7 is incorrect because it omits the negative sign. In an exam, include the sign attached to the term when identifying its coefficient.

Related tags

PolynomialsCoefficientLinear TermSign Conventions

Frequently asked questions

What is the correct answer to this question?

−7

Why is this the correct answer?

In the standard form ax² + bx + c, the coefficient of x is b. Here, the x-term is −7x, so its coefficient is −7. Option 7 is incorrect because it omits the negative sign. In an exam, include the sign attached to the term when identifying its 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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  6. 6Which polynomial has rational coefficients and zeroes 1 + √2 and 1 − √2?
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  8. 8Which expression is a polynomial in one variable (x)?
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  10. 10What is the constant term of the polynomial \(7x^2+5x-11\)?
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