Question

Решите уравнение:

(х-2)^-8(х-2)+15=0

Answer 1

(x-2)^2-8(x-2)+15=0

x^2-4x+4-8x+16+15=0

x^2-12x+35=0

D=(-12)^2-4*1*35=144-140=4

x1=(2-(-12))/2=14/2=7
x2=(-2-(-12))/2=10/2=5