SubArea: Higher degree equations and inequalitiesLevel: AProject ID: 2010009704Source Problem: 9000028306Accepted: 0Clonable: 1Easy: 1Find the sum of all real solutions of the following equation. \[ \left (2 - x\right )\left (x^{2} - 9\right ) = 0 \]\( 2\)\( 0\)\( 5\)\( 3\)