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2014-08-14T17:23:51+03:00
X²-(m+2)+x+m+1=0
x²-m-2+x+m+1=0
x²+x-1=0
Δ=b²-4ac
Δ=1²-4*1*(-1)
Δ=1+4=5
x1=(-1+√5)/2
x2=(-1-√5)/2