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Solving Quadratic Equations using the Quadratic Formula

Solving Quadratic Equations using the Quadratic Formula 1.13 - Solution

arrow_back Return to Solving Quadratic Equations using the Quadratic Formula

The Quadratic Formula has many computations and, therefore, many places where errors can occur. In this case we can see that the first time was replaced in the Quadratic Formula, one of the negatives was dropped. In our quadratic, we have and So the first substitution of should have looked like

Let's substitute correctly and solve.

Interestingly enough, the answers with the error are just different signs of the actual solutions.