How to really complete the square for solving a quadratic equation
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Completing the square (step by step instruction & visual illustration)
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Why do we "complete the square"?
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I find that students LOVE using the quadratic formula. Solving x^2-1=0. Reddit r/mathjokes
21:24
4 methods of solving quadratic equations, by factoring, taking sqrt, CTS, and quadratic formula
18:08
a super nice functional equation
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Blanche Gardin a Osé Critiquer Israël dans un Sketch !
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How to solve quadratic equations by using the quadratic formula
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