Which polynomial simplifies to (3x-2)?
Answer and explanation
Correct answer: \(8x-5x-2\)
In option B, combining like terms gives \(8x-5x-2=(8-5)x-2=3x-2\). In option A, the constant term is \(+2\), so it simplifies to \(3x+2\), not \(3x-2\). Exam tip: First combine the coefficients of like \(x\)-terms, then check the sign of the constant term carefully.
Frequently asked questions
What is the correct answer to this question?
\(8x-5x-2\)
Why is this the correct answer?
In option B, combining like terms gives \(8x-5x-2=(8-5)x-2=3x-2\). In option A, the constant term is \(+2\), so it simplifies to \(3x+2\), not \(3x-2\). Exam tip: First combine the coefficients of like \(x\)-terms, then check the sign of the constant term carefully.
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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