2x squared - 11x
To find this, follow these steps:
(3x squared - 6x - 4) - (x squared + 5x - 4)
Subtract 3x squared and x squared to give you 2x squared. Then, add -6x and -5x together to get -11x.
The reason it isn’t -6x + 5x is because you’re meant to be subtracting the two equations, thus making the five a negative.
After this, you’re meant to add -4 and 4, which cancel each other out.
Hope this helps!
