## What youâ€™ll learn to do: Factor to solve quadratic equations and use the quadratic formula

The left computer monitor in the image above is a 23.6-inch model and the one on the right is a 27-inch model. Proportionally, the monitors appear very similar. If there is a limited amount of space and we desire the largest monitor possible, how do we decide which one to choose? In this section, we will learn how to solve problems such as this using four different methods.