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January 18th, 2018, 09:56 PM  #1 
Member Joined: Oct 2017 From: Japan Posts: 37 Thanks: 2  Completing the square, the easy way
Thanks for the positive feedback my lessons have been receiving from the forum. Completing the square is often a very confusing topic, and the essence of the method is not always easy to grasp. Do you know that you can solve by completing the square with just a little more than a simple drawing? In the lesson below I am going to show you how. Let me know if something is not clear. 
January 18th, 2018, 11:33 PM  #2 
Senior Member Joined: Oct 2009 Posts: 403 Thanks: 139 
Are you going to show the analogous way of computing the cubic equation, but using a 3D cube instead?

January 21st, 2018, 05:26 AM  #3 
Member Joined: Oct 2017 From: Japan Posts: 37 Thanks: 2 
That would be interesting but too complicated, especially for my target audience.

January 21st, 2018, 06:43 AM  #4 
Math Team Joined: Dec 2013 From: Colombia Posts: 7,308 Thanks: 2443 Math Focus: Mainly analysis and algebra 
I think that, having started with a good idea, you then needlessly overcomplicate it yourself


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