because it often is too slow to plug and simplify. Factorising is often much much quicker. And completing the square is also a way to do quadratics that cannot be factorised but are too slow to plug.
OTF Thinking Thread
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Oct 16, 2025
0
#64
that's, I'm sure, deep. Is that your own quote or from somewhere else?
Oct 16, 2025
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#65
Probably somewhere else. Not a lot in my life is original, and quotes definitely aren’t.
Oct 16, 2025
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#66
most modern things are remixes of things that have already existed haha. music for example.
Oct 16, 2025
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#67
Oct 17, 2025
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#70
I'm pro digital learning. Its so useful to have all your notes in one place
PointlessR wrote:
New topic: should all schools use devices for learning?
Define 'devices'. If you mean a computer and modern Smartboards, then yes.
Oct 19, 2025
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#75
And in this topic I mean high schools and younger, not unis and colleges.
PointlessR wrote:
And in this topic I mean high schools and younger, not unis and colleges.
Sure. Why not?
Oct 19, 2025
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#77
#71
Eh
It really depends
A lot of people will just play games on the computers if they have one
I think the benefits outway the drawbacks tho
Eh
It really depends
A lot of people will just play games on the computers if they have one
I think the benefits outway the drawbacks tho
Only if the device is moderated.
Nov 7, 2025
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#79
new problem: the gap between the rich and poor has been widening further in many places globally as well as within countries. Lots of people don’t have real access to housing which causes some political risk and civil unrest. Thoughts? Should we be switching our economic system?
that is way to solve quadratics. Its called completing the square, and can be used on any type of quadratics, meaning ones that you cannot factorise can be done like this. Specifically this is an example of completing the square when a != 1.
sometimes it is quicker to use the quadratic formula, but really it is all the same thing.
Why do we need so many ways to solve the Quadratic equation? Using the discriminant and the regular equation is the easiest, so why even bother with the others?