X^2 - 6X - 14X + 18 + X^2 = 0 2X^2 - 20X + 18 = 0 2*(X^2 - 10 X + 9) = 0 D = 100 -4*1*9= 100 - 36 = 64 ( V D = 8) X1 = ( 10 + 8 ) \ 2 = 9 X2 = 2 \ 2 = 1 ответ: 9 и 1