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How to Solve By Completing the Square (NancyPi)
17:33
YouTubeNancyPi
How to Solve By Completing the Square (NancyPi)
MIT grad shows the easiest way to complete the square to solve a quadratic equation. To skip ahead: 1) for a quadratic that STARTS WITH X^2, skip to time 1:42. 2) For a quadratic that STARTS WITH 2X^2, 3X^2, etc., skip to time 6:46. 3) For NEGATIVE leading term like -X^2, skip to 13:34. 4) If there's NO X TERM (ex. 3x^2 - 121 = 0), then you ...
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GCSE Maths - How to Factorise Quadratics by Completing the Square (Part 1 - Factorise When a=1)
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