In which expression is the coefficient of (rs) equal to (8)?
Answer and explanation
Correct answer: \(8rs-5r\)
In \(8rs-5r\), the term \(8rs\) can be written as \(8\times rs\). Hence, the coefficient of \(rs\) is 8. In \(rs+8\), the coefficient of \(rs\) is 1 because \(rs=1\times rs\). Exam tip: To find a coefficient, identify the numerical factor multiplying the term.
Frequently asked questions
What is the correct answer to this question?
\(8rs-5r\)
Why is this the correct answer?
In \(8rs-5r\), the term \(8rs\) can be written as \(8\times rs\). Hence, the coefficient of \(rs\) is 8. In \(rs+8\), the coefficient of \(rs\) is 1 because \(rs=1\times rs\). Exam tip: To find a coefficient, identify the numerical factor multiplying the term.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Introduction to Polynomials. Topic: Algebraic expressions.
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