1) Воспользовавшись т. Виета, имеем:
х₂ = 56/4 = 14; р = -(14 + 4) = -18.
2) x² - 25x + 114 = 0; x₁ + x₂ = 25; x₁ · x₂ = 114; x₁ = 19; x₂ = 6.
x² - 11x - 42 = 0; x₁ + x₂ = 11; x₁ · x₂ = -42; x₁ = 14; x₂ = -3.
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1) Воспользовавшись т. Виета, имеем:
х₂ = 56/4 = 14; р = -(14 + 4) = -18.
2) x² - 25x + 114 = 0; x₁ + x₂ = 25; x₁ · x₂ = 114; x₁ = 19; x₂ = 6.
x² - 11x - 42 = 0; x₁ + x₂ = 11; x₁ · x₂ = -42; x₁ = 14; x₂ = -3.