So i think here you would FOIL. so -5x^2+10x-5x+10 and then combine like terms :)
Answer:
here is no question sorry
2nd answer.
any pts in the shaded region satisfies your simultaneous equation.
To find the slope of the graph you pick any piece of the line, and divide the vertical difference between its ends by the horizontal difference between its ends. If the graph is distance versus time then the slope represents the speed.
