We figured out how to use numbers a long time ago, but then the concept of negative numbers came about. This is a much more abstract concept, because you can't have a negative amount of apples, or something like that. Nevertheless, negative numbers are ubiquitous in math, so we had better learn all about them!
Watch the whole Mathematics playlist: [ Ссылка ]
Classical Physics Tutorials: [ Ссылка ]
Modern Physics Tutorials: [ Ссылка ]
General Chemistry Tutorials: [ Ссылка ]
Organic Chemistry Tutorials: [ Ссылка ]
Biochemistry Tutorials: [ Ссылка ]
Biology Tutorials: [ Ссылка ]
EMAIL► ProfessorDaveExplains@gmail.com
PATREON► [ Ссылка ]
Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!
Amazon: [ Ссылка ]
Bookshop: [ Ссылка ]
Barnes and Noble: [ Ссылка ]
Book Depository: [ Ссылка ]
![](https://i.ytimg.com/vi/3-5DKCLJspM/mqdefault.jpg)