Пусть x^2 = t
D = 9 - 4*2 = 1
t1 = (3+1)/2 = 2
t2 = 2/2 = 1
Произведем обратную замену:
x^2 = 2
x = +- корень из 2
x^2 = 1
x = +- 1
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Пусть x^2 = t
D = 9 - 4*2 = 1
t1 = (3+1)/2 = 2
t2 = 2/2 = 1
Произведем обратную замену:
x^2 = 2
x = +- корень из 2
x^2 = 1
x = +- 1