Can you please explain how to simplify
(4x^2 - 5x + 9) + (2x^2 - x)
To simplify the expression (4x^2 - 5x + 9) + (2x^2 - x), you simply need to combine like terms.
First, add the terms with the x^2 variable:
4x^2 + 2x^2 = 6x^2
Next, add the terms with the x variable:
-5x - x = -6x
Finally, add the constant terms:
9
Putting it all together, the simplified expression is:
6x^2 - 6x + 9