it is four fifths.
1 - 1/5 = 4/5
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1 1/5 -1/2 = 7/10
if you mean x to the second power minus 1 then the answer is (x+1)(x-1)
5x2 + 9x + 13 has no real factors.
Minus 1 - 2009 was released on: USA: 2009 (Garden State Film Festival) USA: May 2009 (Buffalo Niagara Film Festival)
x(x + 1)(x - 1)