Question

liverpool will probably win champion league this year

Answer 1

x^2-5x+4=0

x^2-x-4x+4=0

x(x-1)-4(x-1)=0

(x-1)(x-4)=0

x-1=0 => x=1.

x-4=0 => x=4.

|1-4|=|-3|=3

Ответ: 3.