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Shortcuts

This focuses on ways to manipulate problems and simplify them.

4 Shortcuts

  1. Guess, Check + Revise
  2. Arithmetic Tricks
  3. The Gauss Trick
  4. Difference of Squares

Difference of Squares

The way to mentally think about this is that (x*y)^2 = x^2 + y^2 + xy + xy:

Difference of squares diagram

Difference of squares diagram

Repository

https://github.com/okeeffed/developer-notes-nextjs/content/algebra/shortcuts

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