What is the simplified form of (8s-3s+4)?
Answer and explanation
Correct answer: 5s+4
8s and -3s are like terms, so their coefficients are combined: 8s-3s=5s. The constant term +4 remains unchanged. Therefore, the simplified expression is 5s+4. In 5s-4, the sign of the constant term has been changed incorrectly. Exam tip: Combine or subtract only terms with the same variable and exponent.
Frequently asked questions
What is the correct answer to this question?
5s+4
Why is this the correct answer?
8s and -3s are like terms, so their coefficients are combined: 8s-3s=5s. The constant term +4 remains unchanged. Therefore, the simplified expression is 5s+4. In 5s-4, the sign of the constant term has been changed incorrectly. Exam tip: Combine or subtract only terms with the same variable and exponent.
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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