(х-2)^2 - 8 ( х-2 ) +15 = 0

x^-4x+4-8x+16+=0

x^-12x+35=0

D=144-4*35

D=4

x1=12+2/2=7

x2=12-2/2=5

Ответ 7 и 5

(^ - знак квадрата)

(х-2)^ -8( х-2 )+15 = 0

x^-4x+4-8x+16+15 = 0

x^-12x+35 = 0

D = (-12)^ -4*35 = 144-140 = 4

x1 = (12-2)/2 = 10/2 = 5

x2 = (12+2)/2 = 14/2 = 7

Ответ: 5; 7.