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Copy of #15 Solving Quadratic Equations without factoring (7/20/20) Due 7/23/20 @1 pm (1/16/2024)

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19 Nsɛmmisa

#15 Solving Quadratic Equations without facotring (7/20/20) Due 7/23/20 @1 pm

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MGSE8.EE.2
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Essential Question: What are other methods of solving quadratic functions besides factoring?

Learning Target: Students will be able to solve quadratic equations that model real-world situations.

Show your work for credit.

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1.

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2.

Review: All square roots of real, positive numbers have two solutions.

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3.

Does this square root have a real answer? (Hint is there a number times itself that equals -81)

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4.

Explain why all square roots have two answers.

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5.

Review: Match each number on the left with its simplified form on the right.

  • 4

  • -4

  • 5

  • -5

  • 6

  • -6

  • 8

  • -8

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6.

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7.

Below is an example how to solve an quadratic equation by taking a square root. Fill the blanks to complete the problem.

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8.

Solve this quadratic equation by taking the square root.

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9.

Solve this quadratic equation by taking the square root.

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10.

Solve this quadratic equation by taking the square root.

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11.

Below is an example how to solve an quadratic equation by taking a square root. Fill the blanks to complete the problem. Use desmos to solve the radical at the end of the problem.

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12.

Solve this quadratic equation by taking the square root.

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13.

Solve this quadratic equation by taking the square root.

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14.

Solve this quadratic equation by taking the square root.

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15.

Solve this quadratic equation by taking the square root.

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16.

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17.

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18.

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19.

Finish this assignment by completing the foloowing Quizziz with a score of 17000 or higher. For credit, post a screenshot of your score in the Show Your Work canvas.

quizizz.com/join?gc=2435660