Решите уравнение===gt;x^2=-x+2. x=?

X^2 + x - 2 = 0  D = 1 + 4*2 = 9 x₁  = ( - 1 + 3)/2 = 2/2 = 1; x₂ = ( - 1 - 3)/2 = - 4/2 = - 2;