You can plot a quadratic equation using a similar method. A classic quadratic equation is ax² + bx + c. We can set variables for a, b, and c as well as create an x-axis: x = np.linspace(-10, 10 ...

Many former algebra students have painful memories of struggling to memorize the quadratic formula. A new way to derive it, overlooked for 4,000 years, is so simple it eliminates the need.

Before students are presented with the quadratic formula, they’re taught a simpler method to solve certain equations. For simplicity, we’ll consider an equation where a = 1. x ² – 4 x – 5 = 0 ...