Answer: x^2 -14x + 2y
Step-by-step explanation: The first thing that you have to do is add all x and y variables that match. So first, you add 7y + (-5y) which gives you 2y. Next comes the 3x + (-17x) = -14x. Then last but not least, the -x^2 + 2x^2 = 1x^2. All this then if placed in the right order gives you:
2y - 14x + 1x^2
