3.3 Quadratic Formula

two real solutions ( no negatives under the radical)

one real solution ( number under the radical simplifies to zero)

two imaginary solutions ( negative under the radical

Step 1: Make sure the equation is written in standard form (one side = 0)

Step 2: Identify a, b and c in the equation

Step 3: Plug the numbers into the quadratic formula!

​​  $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$  

Step 4: Perform the operations and solve!