Question 911516
Something like {{{y=x-x^2}}} is a parabola and has infinite solutions as long as the ordered pairs fit on the parabola.


If you want to solve for x, convert the equation in x and y into standard form using Completing The Square.
You can then solve for x but you will have two different branches; so you can solve for x on one
branch or solve for x on the other branch.


For help with Completing The Square, study these:


<a href="http://www.algebra.com/my/Completing-the-Square-Using-Pictures.lesson?content_action=show_dev">http://www.algebra.com/my/Completing-the-Square-Using-Pictures.lesson?content_action=show_dev</a>


<a href="http://www.algebra.com/my/Completing-the-Square-to-Solve-General-Quadratic-Equation.lesson?content_action=show_dev">http://www.algebra.com/my/Completing-the-Square-to-Solve-General-Quadratic-Equation.lesson?content_action=show_dev</a>