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What is the coefficient of (x) in ( (x-4)(x+6) )?
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Answer and explanation
Correct answer: 2
\((x-4)(x+6)=x^2+6x-4x-24=x^2+2x-24\). Therefore, the coefficient of \(x\) is \(2\). The number \(-24\) is the constant term, not the coefficient of \(x\). Exam tip: simplify the expression by combining like terms before identifying a coefficient.
Frequently asked questions
What is the correct answer to this question?
2
Why is this the correct answer?
\((x-4)(x+6)=x^2+6x-4x-24=x^2+2x-24\). Therefore, the coefficient of \(x\) is \(2\). The number \(-24\) is the constant term, not the coefficient of \(x\). Exam tip: simplify the expression by combining like terms before identifying a coefficient.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Exploring Algebraic Identities. Topic: Algebraic identities.
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