SOLVING QUADRATIC EQUATIONS BY COMPLETING THE SQUARE | QUARTER 1 WEEK 1 PART 3 (Tagalog)
This is a Module based lesson for MATH 9 with the topic SOLVING QUADRATIC EQUATIONS by COMPLETING THE SQUARE for QUARTER 1 WEEK 1 : PART 3
COMMENT down if you would like a COPY of the POWERPOINT I used in the video, I would be glad to SHARE. ☺️
Learning Goals and Targets
Identify the general form for completing the square
Know the steps in completing the square.
Solve quadratic equations by completing the square.
0:00 Video sneak peek
01:38 Introduction
02:01 Learning Goals and Targets
02:16 What is Completing the Square?
03:09 Steps in Solving by Completing the Square
04:38 Example #1
10:48 Example #2
15:06 Example #3
22:12 Closing message and references
You may also watch connected videos:
Standard form and extracting square roots: https://youtu.be/cjtxSjbpzTc
Factoring: https://youtu.be/DCrFn0pWGtU
Completing the Square: https://youtu.be/jcFHYBbmLLo
Video highlights:
Steps in Solving by Completing the Square:
Transform the equation so that the constant term, c , is alone on the right side.
If a , the leading coefficient (the coefficient of the x2 term), is not equal to 1 , divide both sides by a .
Add the square of half the coefficient of the x-term, (𝑏/2𝑎)2 to both sides of the equation.
Factor the left side as the square of a binomial.
Take the square root of both sides. (Remember: (x+q)2=r is equivalent to x+q=±r.
Solve for x.
References
https://www.mathsisfun.com/algebra/completing-square.html
https://www.chilimath.com/lessons/intermediate-algebra/completing-the-square-more-examples/
https://www.varsitytutors.com/hotmath/hotmath_help/topics/completing-the-square
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