Ответ:
x1 = -5
x2 = 2
Объяснение:
x^2 + 3x - 10 = 0
D = (b^2) - 4ac = (3^2) - 4 × 1 × (-10) = 9 + 40 = 49 > 0 , значит 2 корня
x1 = ((-b)-√D/2a) = ((-3)-√49/2×1 = ((-3)-7/2 = -10/2 = -5
x2 = ((-b)+√D/2a) = ((-3)+√49/2×1 = ((-3)+7/2 = 4/2 = 2
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Ответ:
x1 = -5
x2 = 2
Объяснение:
x^2 + 3x - 10 = 0
D = (b^2) - 4ac = (3^2) - 4 × 1 × (-10) = 9 + 40 = 49 > 0 , значит 2 корня
x1 = ((-b)-√D/2a) = ((-3)-√49/2×1 = ((-3)-7/2 = -10/2 = -5
x2 = ((-b)+√D/2a) = ((-3)+√49/2×1 = ((-3)+7/2 = 4/2 = 2
x1 = -5
x2 = 2