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Are there any common bacteries, virusus, chemical compounds on papers affecting your gastrological system? Need to find a and b such that x^4 - 8x^3 + 4x^2 + ax + b is a perfect square.? Pls help i cant math! i need to find out what x is or something 29/7x - 22 = 84/10? How often can I take clonidine? How many atoms are 2.08 mol of Au?