SubArea: Higher degree equations and inequalitiesLevel: BProject ID: 2010009505Source Problem: 9000029302Accepted: 0Clonable: 1Easy: 0Find the solution set of the following inequality. x4−81>0R∖[−3;3](3;∞)(−∞;−3]∪[3;∞)(−∞;−9)∪(9;∞)(−3;3)
