|x + 2| - x = 1, |x - 2| = x + 1, (x + 2)(x - 1), x^2 - x - 1, x - 2/x - 1, √x - 2 √x - 1, x + 2√(x - 1), x^2+x+1, √x^2 + x - 1, ( x – 2) ( x – 1), x² + 2 = x + 1, x + 2/x - 1, x^2 +x+1, ( x - 2 ) ( x+1), √(x^2 - x + 1), |x + 2| + |x - 1|, x^2-x+1, (x + 2)³ - (x + 1)³