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(√3x-5)(√3x+5)≥0
(x-5/√3)=0 v (x+5/√3)=0
x=5/√3 v x=-5/√3
x=5√3/3 v x =- 5√3/3
rysujemy oś i parabola ramionami w górę
x∈(-∞,-5√3/3> u <5√3/3,∞)