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Graphing Calculator Procedures-Opener: Have students solve the following quadratic equation by completing the square: 3x2 + x – 4 = 0 {1, -4/3} Lesson: Using the equation ax2 + bx + c = 0, complete the square step by step along with the class, thus deriving the quadratic formula. Solve together the opener using the quadratic formula. ................
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