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Solving Quadratic Equations using the Quadratic Formula Objective: Students will be able to solve quadratic equations by using the quadratic formula

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Solving Quadratic Equations using the Quadratic Formula General equation of a quadratic: Quadratic Formula: Notice where the letters come from for the formula We use the quadratic formula when something can not be factored. However, it also works for factorable quadratic equations as well. You must get equation equal to zero before you determine a,b, and c.

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#1: Before you can find a,b, and c, you must get equation = to 0. Type what is under the radical exactly as written on your calculator. Simplify the radical Divide by the denominator, if you can Zeros:

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#2: Simplify the radical Divide by the denominator, if you can. Since I can’t, divide by GCF Zeros: Solve the quadratic equation by using the quadratic formula and leave answers in simplest radical form.

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Solve the quadratic equation by using the quadratic formula and round answers to the nearest tenth. #3: Since we are solving to the nearest tenth, we do not need to simplify the radical! Be careful when typing this into your calculator. I recommend that you type in the numerator then hit enter, then divide by denominator! Zeros:

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#4: Solve the quadratic equation by using the quadratic formula and round answers to the nearest tenth. Zeros:

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Solve the quadratic equation by using the quadratic formula and round answers to the nearest tenth. #5: Zeros

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Solve the quadratic equation by using the quadratic formula and leave answers in simplest radical form. #6: Divide by the denominator, if you can. Since I can’t, divide by GCF Zeros:

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