Question

9 combine like terms: 6x² - 4x + 3x²

Explanation:

Step1: Identify like terms

The terms with \(x^2\) are \(6x^2\) and \(3x^2\), and \(-4x\) is a separate term.

Step2: Combine like terms

For the \(x^2\) terms: \(6x^2 + 3x^2 = (6 + 3)x^2 = 9x^2\)
The term \(-4x\) remains as it is since there are no other like terms for it.
So the combined expression is \(9x^2 - 4x\).

Answer:

\(9x^2 - 4x\)