A product of factors is zero if and only if one or more of the factors is zero. If we replace 0 with y then we get a quadratic function. Many quadratic equations cannot be solved by factoring.
The check means pros and the minus means cons.
Solving Quadratic Equations by Factoring. If we replace 0 with y then we get a quadratic function. Click on any link to learn more about a method. Solutions that are solvable.