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This ML is on our website, on the sidebar: 1

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1. Factoring 2. Quadratic Formula 3. Completing the Square 2

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Remember, if the discriminant is a perfect square (like 4,9,16, or 25), then the roots are rational. If not, irrational. 4

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These formulas can save you lots of time on your Post-Test…and on the Regents Exam. Quadratic equation must be in this form: 5

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We had a Mini-lesson on December 22 nd on this topic…it is also on the school website, right next to this lesson. 6

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You need to be able to: 1. Solve a system of equations 2. Solve a higher-degree equation, like Pre-Test #7 3. Finally, there are 4 problems with Complex Fractions like #10 on Pre-Test. As always, there will be 4 on the Post-Test, too!!! ALWAYS CHECK YOUR ROOTS!!! Why? 7

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Research Artifact due TODAY!!! Place underneath Elmo when finished. POST-TEST on Monday 8

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Lesson 6.5: The Quadratic Formula and the Discriminant, pg. 313 Goals: To solve quadratic equations by using the Quadratic Formula. To use the discriminant.

Lesson 6.5: The Quadratic Formula and the Discriminant, pg. 313 Goals: To solve quadratic equations by using the Quadratic Formula. To use the discriminant.

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