Re:Airbus to build 'first interplanetary cargo ship'
by cgriswald on Wednesday July 29, 2020 @11:45AM
(#23987978)
If x is the difficulty, the phrase either means “twice the difficulty, squared”: (2x)^2 or 4x^2.
Or “the difficulty squared and squared again”: (x^2)^2 or x^4.
The GP is asking why x == 2 in the second example rather than just “the difficulty”. English interpretation doesn’t explain that.
Think of the sentence, "A man, twice fooled, shall not be fooled again."