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The Quadratic Formula - Problem 13

Teacher/Instructor Alissa Fong
Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

Although the quadratic formula can be used to solve any quadratic equation, it is most useful when the solutions are irrational, meaning non-terminating, non-repeating decimals. Rather than use a calculator to find a decimal approximation, we use simplifying radicals to leave the answers in exact form. Simplify each of the solutions be separating it into two fractions, and then reducing each fraction separately.

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