4 x 4(4-4) = 4 x 40 = 4 x 1 = 4 or 4 + 4(4-4) = 4 + 4(0) = 4 + 0 = 4
Negative Minus Negative = Positive so -4-4= 4 ericrain- No... We have to use 4 fours not 2 fours, so 4+4(4-4)
I have no idea, but my best guess would be it has something to do with braille cave.
Four cubed = 64.
4x4x4x4=256/4=64