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dasha20010905
@dasha20010905
July 2022
1
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допоможіть з 18)дуже потрібно
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sedinalana
X²-16≠0
x²≠16
x≠-4 U x≠4
x²+3x-10≥0
x1+x2=-3 u x1*x2=-10⇒x1=-5 u x2=2
x≤-5 U x≥2
x∈(-∞;-5] U [2;4) U (4;∞)
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Answers & Comments
x²≠16
x≠-4 U x≠4
x²+3x-10≥0
x1+x2=-3 u x1*x2=-10⇒x1=-5 u x2=2
x≤-5 U x≥2
x∈(-∞;-5] U [2;4) U (4;∞)