Решите пожалуйста : x2-6x=14x-18-x2
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
X^2-6x=14x-18-x^2 x^2-6x-14x+x^2=-18 2x^2-20x=-18 2x^2-20x+18=0 | :2 x^2-10x+9=0 x1 + x2 = 10 x1 • x2 = 9 x1 = 1 x2 = 9