-2.5 and 4
You can get this by factoring to the equation (2x + 5)(x - 4)
There are no given coordinates, so it's impossible to answer your question. I'm sorry.
Answer: only has one solution
Step-by-step explanation: If you find the answer for 7x+3x-8, youll get 10x+8. This will be the same answer for 2(5x-4). Making them equal and having only one solution