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(x-1)(x+1)>-(x²+2x+1) i (x-1)(x+1)< x²+2x+1
x²-1 +x²+2x+1>0 i x²-1-x²-2x-1 < 0
2x²+2x>0 i -2x-2 <0
2x(x+1)>0 i -2x <2
m.z. x=0, x=-1 x>-1
x∈{(-∞,-1) u (0,+∞)} n (-1,+∞)
Odp. x∈(0,+∞)