SubArea: Higher degree equations and inequalitiesLevel: BProject ID: 9000028303Accepted: 1Clonable: 0Easy: 0The following equation has a solution \(x = -2\). Find the sum of the remaining real solutions. \[ x^{3} + 3x^{2} - 18x - 40 = 0 \]\(- 1\)\(1\)\(0\)\(4\)
