Is there a way to solve this for a number? I don't understand how to solve this once you get to 15+2x=x^2
15+2x=x^2 Subtract 15 + 2x from each side, we get
0 = x^2 - 2x - 15 Now, let's factor the right side
0 = (x -5) (x +3) And setting each of these to 0, we get
x = 5 and x = -3
And that's it!
