Question

y = x^{2} - 2x - 1 [/tex]

Answer 1

Ola

x² - 2x - 1 = 0

delta
d² = 4 + 4 = 8
d = 2√2

x1 = (2 + 2√2)/2 = 1 + √2
x2 = (2 - 2√2)/2 = 1 - √2

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