What is the simplified form of (9x-4x+6)?
Answer and explanation
Correct answer: 5x+6
Here, 9x and -4x are like terms, so their coefficients are combined: 9x-4x=(9-4)x=5x. The constant term 6 remains unchanged; hence the simplified expression is 5x+6. In 5x-6, the sign of the constant term has been incorrectly changed. Exam tip: Combine only terms with the same variable and exponent.
Frequently asked questions
What is the correct answer to this question?
5x+6
Why is this the correct answer?
Here, 9x and -4x are like terms, so their coefficients are combined: 9x-4x=(9-4)x=5x. The constant term 6 remains unchanged; hence the simplified expression is 5x+6. In 5x-6, the sign of the constant term has been incorrectly changed. Exam tip: Combine 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: Linear polynomials.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
