- published: 11 Oct 2017
- views: 148
In this tutorial you will learn how to express a quadratic equation in 2 forms: general form and turning point form, and how to switch between the two forms by completing the square.
MIT grad shows the easiest way to complete the square to solve a quadratic equation. More videos with Nancy coming in 2017! To skip ahead: 1) For quadratic that STARTS WITH X^2, skip to time 1:42. 2) For 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 cannot complete the square and can solve directly - skip to 16:30. Completing the square means re-arranging the quadratic equation into the neat, "perfect square" form (x + number)^2 equals another number, or (x - number)^2 equals another number. The point of doing this is so that you can solve by just square-rooting both sides of the equation. If your quadratic equation starts with... 1) just X^2 (for ex: x^2 + 6x...
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Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the basic concept of square threaded screw of pending upward motion. Next video in this series can be seen at: https://youtu.be/380WP1JwK_o
Can use this formula to square any binomial. http://www.openalgebra.com/
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Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the basic concept of square threaded screw of just keeping the screw from pending downward motion. Next video in this series can be seen at: https://youtu.be/mS4t1Zo_Cj8
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the basic concept of square threaded screw of pending downward motion. Next video in this series can be seen at: https://youtu.be/2kz0vRoIzlc
http://demonstrations.wolfram.com/InstantlyPeriodicGeneralContinuedFractionRepresentationsOfSq/ The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily. This Demonstration provides a way to instantly write a periodic general continued fraction representation of square roots. This can be used as a quick way to easily approximate the numerical value of square roots. Contributed by: Michael Morrison
Periodic functions will have many solutions. It is important to understand and write the answer in general form as shown for such functions.
Basicly since we need to do the same multiplication twice for the tenth and ones, I just multiple it by 2 and this process can save a lot of time. You can even do the square faster in your head if you learn this process.
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