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x²(x+2)-4(x+2)>0
(x²-4)(x+2)>8
(x+2)²(x-2)>8
rysunek:
http://img4.imageshack.us/img4/9517/84049804.png
x'=-2 (pierwiastek podwojony)
x=2
x∈(2,oo)