Completing the Square to Solve Quadratic Equations
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- čas přidán 1. 02. 2023
- Looking to learn how to use completing the square to solve quadratic equations? In this video you'll learn the complete steps to completing the square. You'll learn the formula for the completing the square method to finding solutions of a quadratic equation.
Other videos you need to watch to fully understand how to solve quadratic equations in the order you should watch them:
• Quadratic functions • Quadratic Functions in...
• What is the square root property • What is the Square Roo...
• Completing the Square to Solve Quadratic Equations • Completing the Square ...
• The quadratic formula • Quadratic Formula
• The discriminant in the quadratic formula • The Discriminant in th...
• Complex Numbers Operations • Complex Numbers Operat...
These are all videos on how to factor:
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• Factoring by Grouping • Factoring by Grouping
• Factoring Difference of Two Squares • Factoring the Differen...
• Factoring Trinomials with the Leading Coefficient = 1 • factoring Trinomials W...
• Factoring Trinomials with a Leading Coefficient Greater than 1 • Factoring Trinomials w...
I don't understand when the teacher was teaching in class..but now..everything is easy..thank you soo much
Where were you when i was sophomore high? I wished my teacher explained this method to us. We ere so confused. Thank you for sharing your knowledge!
Nice explanation
Thanks!
great lecture indeed
Thanks
Dica Fácil para quando (a) for igual a (1);
x² + 4x + 1 = 0
*x² = - 4x - 1*
Fórmula __ *X = b/2 + - ^[ (b/2)² + (c) ]*
X = - 4/2 + - ^[ (- 4/2)² + (- 1)
X = - 2 + - ^[ 4 - 1 ]
X = - 2 + - ^[ 3 ]
*X' = - 2 + ^[ 3 ]*
*X" = - 2 - ^[ 3 ]*
Parabéns Professora, sucesso sempre.
A good exercise is to solve ax^2 + bx + c using competing the square to derive the quadratic formula.
Good madam
❤
Why don't you use an area model, so that the traditional approach makes more sense? There's also the Po-Shen Loh method that makes this easier to conceptualize -- and makes the Quadratic Formula make more sense.
Thank you for the suggestion. This lesson is part of the college Algebra course that I teach. Many students need to learn how to complete the square for their Algebra 2 class as well so I'm hoping this video will be of help to them. That's the fascinating part of math! So many ways to solve it. Thanks for leaving a comment.
@@yesicandomath7226 You're welcome. According to the research, the majority of people (about 65%) are conceptual math leaners. They work their way through math problems, using logic -- not by memorizing processes. Without being taught said logic, they are "dead in the water," so to speak. If you check out the Po-Shen Loh method, you will see the connections to the Quadratic formula. Once you get used to it, you're able to do a lot of it in your head.
Where did 4x go?
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