Solving a quadratic equation by taking the square root of both sides

The video tutorial explains quadratic equations, focusing on those with a single variable squared. It introduces solving these equations using inverse operations by isolating the variable. The tutorial emphasizes the importance of considering both positive and negative roots when taking square roots, resulting in a solution set.

Why is it important to include both positive and negative solutions when solving for X?

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How do you express the solutions of a quadratic equation in set notation?

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