What is the simplified form of (3x+4-2x+1)?
Answer and explanation
Correct answer: \(x+5\)
Combining like terms gives \(3x-2x=x\), and combining the constants gives \(4+1=5\). Therefore, the simplified expression is \(x+5\). In \(x+3\), the constant terms have been added incorrectly. Exam tip: Add or subtract only like terms, such as \(x\)-terms with \(x\)-terms and constants with constants.
Frequently asked questions
What is the correct answer to this question?
\(x+5\)
Why is this the correct answer?
Combining like terms gives \(3x-2x=x\), and combining the constants gives \(4+1=5\). Therefore, the simplified expression is \(x+5\). In \(x+3\), the constant terms have been added incorrectly. Exam tip: Add or subtract only like terms, such as \(x\)-terms with \(x\)-terms and constants with constants.
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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