Quadratic Equations Formula - Explained Visually

In this video, we will try to visualize the quadratic formula. As you know, the quadratic formula is the solution of the quadratic equation. This visual method is called, completing the square, where we basically, turn this equation into two squares of equal area. One of the square has, all the known coefficients like, a, b and c. The other square has the unknown x, in its side.

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This is how it should be taught in school.

It also shows perfectly why the discriminant is so important for classifying the quadratics.