SubArea: Radical equations and inequalitiesLevel: CProject ID: 1003187204Accepted: 1Clonable: 0Easy: 0The solution set of the equation x2−2x+1−2|x+3|+x+7=0 is:{−7}∪[1;+∞){−7}∪(1;+∞)[1;+∞)(1;+∞)
