Proszę o rozwiązanie: 8n-32/n do kwadratu-n=4/7
Δ = 225 - 4 · 1 · 56 = 225 - 224 = 1 , √Δ = 1
x₁ = 15 - 1/2 = 14/2 = 7
x₂ = 15 + 1/2 = 16/2 = 8
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Δ = 225 - 4 · 1 · 56 = 225 - 224 = 1 , √Δ = 1
x₁ = 15 - 1/2 = 14/2 = 7
x₂ = 15 + 1/2 = 16/2 = 8