Completing the square isn’t as hard as everyone thinks. And there’s no reason to memorize a bunch of strange pixie dust magic math rules. Here’s the way to see it for what it is.
Here’s another example:
This last one involves fractions:
Have questions? Post them in the comments.
I was at the Houston Museum of Natural Science last Saturday at the Real Pirates exhibit. Here’s the fun math thing I learned:
Post your thoughts in the comments.
Do you ever wonder why teachers start a problem the way they do?
There are four reasonable ways to start solving an equation like:
3x + 2 = 4x – 1
On this site I will always manipulate and move things around so that the equation we’re solving looks like:
(the three colors represent three different numbers)
I have done it here:
Have questions? Post them in the comments.