Question: how to solve quadratic equation by quadratic formula?
Answer: Plug those values into the quadratic formula, and simplify to get the final answers! Example 5: Solve the quadratic equation below using the Quadratic Formula. First, we need to rewrite the given quadratic equation in Standard Form, a x 2 + b x + c = 0 a{x^2} + bx + c = 0 ax2+bx+c=0.