Finding Square Roots:
Before solving quadratic equations by finding square roots, we first must learn the properties of them, those properties being:
Now that you've got that, we're still not quite ready to solve a quadratic equation, we also need to know how to rationalize the denominator. Below is a video that'll explain exactly how to do that:
Now we are ready to solve quadratic equations by finding square roots! Here's several examples of exactly how it is done: