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Cherry974
@Cherry974
July 2022
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Решите уравнение: 2x(в квадрате)-7x-15=0
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ShirokovP
Verified answer
2x^2 - 7x - 15 = 0
D = 49 + 4*30 = 169 = 13^2
x1 = (7 + 13)/4 = 5;
x2 = ( 7 - 13)/4 = - 1,5
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Verified answer
2x^2 - 7x - 15 = 0D = 49 + 4*30 = 169 = 13^2
x1 = (7 + 13)/4 = 5;
x2 = ( 7 - 13)/4 = - 1,5