Question

 Найдите
корень уравнения

Answer 1

$sqrt{1+x+x^2} +sqrt{1-x+x^2}=2 \ \ 1+x+x^2+1-x+x^2=4 \ \ 2x^2+2=4 \ \ 2x^2=2 \ \ x^2=1$
x₁,₂ = ±√1
x₁,₂ = ±1