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Published byJulian Wheeler Modified over 8 years ago

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Warm Up

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Solving Quadratic Equations by the Quadratic Formula

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Refresh

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Practice

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You try

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Try again: put in general form

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What does it mean to “solve”? When you are asked to “solve” a quadratic, it is asking you to find the roots.

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THE QUADRATIC FORMULA

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What do we do with it?

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Example

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Example 1 continued

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WHY USE THE QUADRATIC FORMULA? The quadratic formula allows you to solve ANY quadratic equation, even if you cannot factor it.

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Example 2

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Example 3: You try Answer: 6, -14

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Example 4: you try again! Answer: -3, 8

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You try! Start with 1 and 4, then go on to the others.

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Homework: 9.7 1: all 3: a and b.

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