3
punti
Livello 0
Le prime tre
x^5 - 25·x^3 > 0
x^3·(x + 5)·(x - 5) > 0
-5 < x < 0 ∨ x > 5
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x^3 + x^2 - 4·x - 4 ≤ 0
(x + 1)·(x + 2)·(x - 2) ≤ 0
x ≤ -2 ∨ -1 ≤ x ≤ 2
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x^5 + 6·x^4 + 9·x^3 > 0
x^3·(x + 3)^2 > 0
x > 0
90142
punti
Genius II