Видео ютуба по тегу Why X Means Unknown

How did X come to mean
How did X come to mean "The UNKNOWN"?
Why is 'x' the unknown? | Terry Moore
Why is 'x' the unknown? | Terry Moore
Why is X Used to Symbolise the Unknown?
Why is X Used to Symbolise the Unknown?
Why is 'x' the unknown? | Terry Moore
Why is 'x' the unknown? | Terry Moore
Духовное значение X | Символ перекрёстка, трансформации и неизвестности
Духовное значение X | Символ перекрёстка, трансформации и неизвестности
Why is 'x' the unknown? - Terry Moore
Why is 'x' the unknown? - Terry Moore
THE X FACTOR — WHY DOES
THE X FACTOR — WHY DOES "X" MEAN "THE UNKNOWN"?
Arithmetic Mean (unknown ‘x’)
Arithmetic Mean (unknown ‘x’)
Why can't you divide by zero? - TED-Ed
Why can't you divide by zero? - TED-Ed
For what values(s) of X is the expression undefined (2x+11)/(x² + x - 20)
For what values(s) of X is the expression undefined (2x+11)/(x² + x - 20)