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Is Biochemistry a memorizing subject ? A polynomial has remainder 3 when divided by (x-2) and a remainder of -5 when divided by (x+2) what is the remainder when divided by (x^2-4)? Can antimatter be found in nature? Or is it rather a substance the futurists believe that needs to be artificially created in a lab? What is the volume in L of 9.21 g sample of oxygen gas at 40.7 degree C that exerts 886.7 mmHg of pressure ? Find the points on the curve y=((x^3)/3)-x where the tan line is parallel to the line y=3x?