SubArea: Quadratic equations and inequalitiesLevel: AProject ID: 2000001001Accepted: 0Clonable: 0Easy: 1Which of the following equations has the solution set \(K=\{-1; 3\}\)?\( (x+1)(x-3)=0\)\( (x-1)(x+3)=0\)\( 5(x-1)(x+3)=0\)\( (x+1)(x-3)=1\)