SubArea: Higher degree equations and inequalitiesLevel: CProject ID: 9000028305Accepted: 1Clonable: 0Easy: 0The following equation has solution \(x_1= 2\) and \(x_2= 4\). Find the sum of the remaining real solutions. \[ x^{4} - 6x^{3} - x^{2} + 54x - 72 = 0 \]\(0\)\(- 1\)\(1\)\(2\)
