Which option has the zero polynomial as its simplified form?
Answer and explanation
Correct answer: \(3x+2-3x-2\)
In option A, combining like terms gives \(3x-3x=0\) and \(2-2=0\). Therefore, its simplified form is \(0\), which is the zero polynomial. Option B simplifies to \(x+2\), so it is not a zero polynomial. Exam tip: Before identifying a zero polynomial, check that both the variable terms and constant terms cancel completely.
Frequently asked questions
What is the correct answer to this question?
\(3x+2-3x-2\)
Why is this the correct answer?
In option A, combining like terms gives \(3x-3x=0\) and \(2-2=0\). Therefore, its simplified form is \(0\), which is the zero polynomial. Option B simplifies to \(x+2\), so it is not a zero polynomial. Exam tip: Before identifying a zero polynomial, check that both the variable terms and constant terms cancel completely.
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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