Пошаговое объяснение:
{x}^{2} - 2x = 3
{x}^{2} - 2x - 3 = 0
d = 4 + 12 = 16
✓D= 4
x1=3
x2=-1
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Пошаговое объяснение:
{x}^{2} - 2x = 3
{x}^{2} - 2x - 3 = 0
d = 4 + 12 = 16
✓D= 4
x1=3
x2=-1