Completing the square is a technique to solve Quadratic Equation.
Key questions to ask when using this technique are:
Key questions to ask when using this technique are:
- What is Completing the Square technique?
- Why do we use Completing the Square?
- When is it used?
- How is the Completing the Square technique applied?
Media and Video
Video 1
Video 2: Fundamental
video 3: summary and song
Resource 2
ACE Learning
The link is shown as follows:
Resource 3
Worksheet 3 for notes, worked examples and practice questions.
Why do we use completing the square? (purpose?)
ReplyDeleteIt not only shows you the vertex, but makes it easer to solve.
There are also times when the form ax^2 + bx + c may be a part of a larger problem and rearranging it as a(x+d)^@+e makes the solution easier, because x only appears once.
For example "x" may itself be a function (like cos(z)) and rearranging it may open up a path to a better solution.
Also Completing the Square is the first step in the Derivation of the Quadratic Formula