In part 1 we looked at how to complete the square so you should already know the process to follow but if you aren’t sure watch that first.
In this video, we will look at how to use completing the square to solve quadratics.
If a quadratic doesn’t factorise, to solve it we need to either use the quadratic formula or complete the square.
Completing the square gives us one or two roots - so one or two solutions to the quadratic (just as we get in factorising or using the quadratic formula).
SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT.
VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you.
These videos can be used in a flipped classroom model or as a revision aid.
Find all of our Chemistry videos here:
Find all of our Biology videos here:
Find all of our Maths videos here:
Access a deeper Learning Experience in the FuseSchool platform and app: www.fuseschool.org
Follow us: http://www.youtube.com/fuseschool
Friend us: http://www.facebook.com/fuseschool
This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY-NC ( View License Deed: http://creativecommons.org/licenses/by-nc/4.0/ ). You are allowed to download the video for nonprofit, educational use. If you would like to modify the video, please contact us: email@example.com
Tagged under: maths,digital learning,online learning,learn maths,school maths,mathematics,gcse maths,high school maths,maths ,free online education,completing square,complete square,factorise,solve,quadratics,quadratic formula,values ,roots,solutions
Find more lesson plans like this:Completing the Square Practice Problems
Add multiple choice quizzes, questions and browse hundreds of approved, video lesson ideas for Clip
Make YouTube one of your teaching aids - Works perfectly with lesson micro-teaching plans
1. Students enter a simple code
2. You play the video
3. The students comment
4. You review and reflect
* Whiteboard required for teacher-paced activities
Carry out a quickfire formative assessment to see what the whole class is thinking
Create interactive presentations to spark creativity in class
Student teams can create and share collaborative presentations from linked devices
Turn any public video into a live chat with questions and quizzes