Question

Уравнение (x - 1) * koren x-1 +3 =x

Answer 1

$(x-3)sqrt{x-1}+3=x \ (x-3)sqrt{x-1}=x-3 \ (x-3)^2(x-1)=x^2-6x+9 \ (x-3)^2(x-1)=(x-3)^2 \ (x-3)^2(x-1)-(x-3)^2=0 \ (x-3)^2(x-1-1)=0 \ (x-3)^2(x-2)=0 \ (x-3)^2=0 \ x-2=0 \ x=3;2$