X^2 - 11X + 10 = 0
D = 121 - 40 = 81 ; V D = 9
X1 = ( 11 + 9 ) : 2 = 10
X2 = ( 11 - 9 ) : 2 = 1
Ответ ( Х - 10 ) * ( X - 1 )
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2X^2 - 3X + 1 = 0
D = 9 - 4*2*1 = 1 ; V D = 1
X1 = ( 3 + 1 ) : 4 = 1
X2 = ( 3 - 1 ) : 4 = 1/2
Ответ ( Х - 1 ) * ( X - 0,5 )