What is the coefficient of (x^2) in (2x+7)?
Answer and explanation
Correct answer: 0
The polynomial \(2x+7\) has an \(x\)-term and the constant term \(7\), but no \(x^2\)-term. It can be written as \(0x^2+2x+7\), so the coefficient of \(x^2\) is \(0\). The number \(2\) is the coefficient of \(x\), not of \(x^2\). Exam tip: If a term of a particular power is absent, its coefficient is \(0\).
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What is the correct answer to this question?
0
Why is this the correct answer?
The polynomial \(2x+7\) has an \(x\)-term and the constant term \(7\), but no \(x^2\)-term. It can be written as \(0x^2+2x+7\), so the coefficient of \(x^2\) is \(0\). The number \(2\) is the coefficient of \(x\), not of \(x^2\). Exam tip: If a term of a particular power is absent, its coefficient is \(0\).
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Introduction to Polynomials. Topic: Linear polynomials.
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