SubArea: Quadratic equations and inequalitiesLevel: BProject ID: 2010007905Source Problem: 9000039004Accepted: 0Clonable: 1Easy: 0Find all x such that the expression 2x2+8 is negative.No such x exists.x∈Rx∈(−2;2)x∈(−∞;−2)∪(2;+∞)
