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hey people i was just wondering if the general shape of a cubic function P(x)=0 with roots a, b and c have the form of: P(x)=x^3-(a+b+c)x^2+(ab+ac+bc)x-abc ???

I need help on this physics question on motion, got to do with an elevator. Is very confusing: A physics teacher decides, just for fun, to use bathroom scales (calibrated in newtons) in an elevator. The scale provide a measure of the force with which they push up on the teacher. When the lift...

hey people, school certificate is coming up soon. Im having a little bit of a problem with science topic compounds nd reactions knowing the different formulas and word equations. Also things like precipitation, neutralization, combustion etc. Have no clue. Maths isnt a problem so i should know...