Answer:
Explanation:
I'm not sure if I'm reading this right, but let's see if this helps:
First we want to distribute the subtraction indicator, this will help with the rest:
2x^2 - x - x^2 - 4x + 6
The reason why there's a +6 is because subtracting a negative makes the number positive. Now we use arithmetic:
x^2 - 5x + 6
This is our new expression. Hope this helps!