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Handout
Purple Math

Purplemath: Completing the Square: Solving Quadratic Equations

For Students 9th - 10th Standards
Purplemath gives several examples which clearly show the process of completing the square to find the maximum and minimum solutions to a quadratic equation.
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Unit Plan
Khan Academy

Khan Academy: Completing the Square (Intro)

For Students 9th - 10th Standards
Try these multiple-choice practice problems on completing the square.
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Unit Plan
Khan Academy

Khan Academy: Solving Quadratics by Completing the Square

For Students 9th - 10th Standards
Practice some multiple-choice problems solving quadratics by completing the square.
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Unknown Type
Khan Academy

Khan Academy: Completing the Square

For Students 9th - 10th Standards
Solve quadratic equations of the form ax^2+bx+c by completing the square. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Completing the Square

For Students 8th - 9th Standards
[Free Registration/Login may be required to access all resource tools.] Learn how to complete the square in order to solve quadratic equations.