The geometric interpretation of completing the square. I wish they taught it this way when I was in gradeschool.

Addendum, it seems this image has gotten a lot of exposure after I uploaded it on wikipedia! Awesome!

The geometric interpretation of completing the square. I wish they taught it this way when I was in gradeschool.

Addendum, it seems this image has gotten a lot of exposure after I uploaded it on wikipedia! Awesome!

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i lyk it

looks like you forgot the second possible root. The boxed equation at the very end should have have a ± before the radical.

The geometric interpretation really only makes sense for the positive root.

which software did you use to draw those images ?

Just simple MS Paint.