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@АфінаПалада1
July 2022
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Знайдіть усі цілі розв'язки системи {х²+3х-4≥0 ;-6<х<3
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sangers1959
Verified answer
X²+3x-4≥0 x²+3x-4=0 D=25 x₁=1 x₂=-4 x∈(-∞;-4)U(1;+∞)
-6<x<3 x∈[-6;3]
//////////////////////////////////////////// //////////////////////////////////////////
-∞_________(-6)________[-4]________[1]________(3)_________+∞
///////////////////////////////////////////////////////////////////
Ответ: x=-5;-4; 1; 2.
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Verified answer
X²+3x-4≥0 x²+3x-4=0 D=25 x₁=1 x₂=-4 x∈(-∞;-4)U(1;+∞)-6<x<3 x∈[-6;3]
//////////////////////////////////////////// //////////////////////////////////////////
-∞_________(-6)________[-4]________[1]________(3)_________+∞
///////////////////////////////////////////////////////////////////
Ответ: x=-5;-4; 1; 2.