So do we. Let's solve them together. Quadratic equations are polynomials that include an x², and teachers use them to teach students to find two solutions at once.

In the typical quadratic equation--X2 - BX + C = 0—students would try and solve for the two different values of X using a rule of thumb: The value of B should equal the sum of Xs two different ...

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. x² – 4x – 5 = 0 ...