What is the simplified form of (6a-2a+5)?
Answer and explanation
Correct answer: \(4a+5\)
\(6a\) and \(-2a\) are like terms, so their coefficients are subtracted: \(6a-2a=4a\). The constant term \(+5\) remains unchanged. Therefore, the simplified form is \(4a+5\). \(8a+5\) would result from adding \(6a\) and \(2a\), not subtracting them. Exam tip: Add or subtract only terms with the same variable and exponent.
Frequently asked questions
What is the correct answer to this question?
\(4a+5\)
Why is this the correct answer?
\(6a\) and \(-2a\) are like terms, so their coefficients are subtracted: \(6a-2a=4a\). The constant term \(+5\) remains unchanged. Therefore, the simplified form is \(4a+5\). \(8a+5\) would result from adding \(6a\) and \(2a\), not subtracting them. Exam tip: Add 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.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
