Question

X^2=2x-1 решите уравнение

Answer 1

x^2=2x-1
x^2-2x+1=0
D = b^2-4ac = 4-4•1•1 = 0
x1 = (2+0)/2=1
x2 = (2-0)/2=1

x = 1

Answer 2

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Готово)
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