Answer
See graph and explanations.
Work Step by Step
Step 1. Graph the function $y_1=x^2-2x$ as the blue curve in the figure.
Step 2. Graph the function $y_2=x$ as the green line in the figure.
Step 3. Graph the function $y_3=y_1+y_2$ as the red curve in the figure.
Step 4. We can see that all three functions meet at $x=0$; in other words, $x=0$ is a solution to all the equations.
