Hur kan the square

You don´t need another video because I´m about to explain it to you! I think Sal made a mistake. Some quadratic expressions can be factored as perfect squares. However, even if an expression isn't a perfect square, we can turn it into one by adding a constant number. If you're seeing this message, it means we're having trouble loading external resources on our website.

Want to join the conversation? Posted 6 years ago. The link to "Last Video" that Sal mentions at Legolas Greenleaf. To complete the square, first, you want to get the constant c on one side of the equation, and the variable s on the other side. Posted 7 years ago. Downvote Button opens signup modal. Could someone at least show all the steps or work that is missing for understanding this kind of high-level education problems?

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The square trailer

Next, you want to add a value to the variable side so that when you factor that side, you will have a perfect square. About About this video Transcript. Jordan Salsky. Juzer Shakir. Inventive and Unique Username. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. That wasn't very clear, may you please do another video about that?

Posted 2 years ago. Next, you want to take the square root from both sides so that x-1 is equal to the positive or negative square root of 16 positive or negative 4. Flag Button opens signup modal. I don't I don't know about others, but I'm more confused now than when I started the video as well! I hope this helps! Andy Nkansah.

Completing the square

Between Posted 3 years ago. Situations could vary, but this is the basic idea behind the procedure. Show preview Show formatting options Post answer. Comment Button navigates to signup page.

Solving quadratics by completing the square (article) - Khan Academy

Because you´re taking this value away from the constant, you will add it to the other side of the equation this might not make sense at first, but if the constant were on the variable side, you would be subtracting. Sort by: Top Voted. Completing the square intro.

Finally, you add 1 to both sides, taking into account that 4 could be positive OR negative. Could someone please explain to me in detail how all this works? I don't know about you guys, but I'm more confused now than I was when I started the video!

Posted 5 years ago. Can someone please post the link to the "Last video" of which Sal speaks?