Answers edited by Youssuf E.

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• How do you simplify `(24x^3y + 12x^2y^2 - 16xy^3)/(4xy)`?
  
• If a `2 kg` object moving at `1/2 m/s` slows to a halt after moving `5 m`, what is the coefficient of kinetic friction of the surface that the object was moving over?
  
• If a `1 kg` object moving at `3 m/s` slows down to a halt after moving `8 m`, what is the friction coefficient of the surface that the object was moving over?