
Solving quadratics by completing the square - Khan Academy
This challenge question gives us a shortcut to completing the square, for those that like shortcuts and don't mind memorizing things. It shows us that in order to complete x 2 + b x into a perfect …
Completing the square review (article) | Khan Academy
Completing the square is a technique for factoring quadratics. This article reviews the technique with examples and even lets you practice the technique yourself.
Worked example: completing the square (leading coefficient ≠ 1)
Sal solves the equation 4x^2+40x-300=0 by completing the square. Created by Sal Khan and Monterey Institute for Technology and Education.
Worked example: Complete the square (video) | Khan Academy
In the video, Sal is just introducing the concept of how to complete the square given two terms. Once the concept is applied to equations, then yes - he would need to add 484 to both sides …
Completing the square (practice) | Khan Academy
Rewrite the equation by completing the square. To use a minus sign, type a minus sign in the box.
Completing the square (video) | Khan Academy
In this video, I'm going to show you a technique called completing the square. And what's neat about this is that this will work for any quadratic equation, and it's actually the basis for the …
Completing the square (intermediate) (practice) | Khan Academy
Rewrite the function by completing the square. To use a minus sign, type a minus sign in the box.
Worked example: Rewriting expressions by completing the square
Completing the square can be used for multiple things, here are a few: 1) Solving a quadratic equation that has 1 variable. 2) Converting a quadratic function / equation that has 2 variables …
Worked example: Rewriting & solving equations by completing …
Completing the square is very powerful because you could actually always apply this, and in the future, what you will learn in the quadratic formula and the quadratic formula actually comes …
Completing the square (video) | Khan Academy
In this video, I'm going to show you a technique called completing the square. And what's neat about this is that this will work for any quadratic equation, and it's actually the basis for the …