EPISODE · Jun 6, 2012 · 3 MIN
Why is 'x' the unknown? | Terry Moore
from TEDTalks Education · host TED
Why is 'x' the symbol for an unknown? In this short and funny talk, Terry Moore gives the surprising answer.
What this episode covers
Why is 'x' the symbol for an unknown? In this short and funny talk, Terry Moore gives the surprising answer.
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Why is 'x' the unknown? | Terry Moore
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