- I need help with a Maths problems: Simplify 1) (x^2-y^2-4x+4y)/ x^2-y^2+4x-4y 2)?

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Chemistry or Biology, please help. Thank you? What is the maximum dose for zyprexa? Solve with steps so i understand. 5x-5>=10 OR -3x>=13? I took prescription cough medicine with codeine last night. It did NOT help. Is it safe to take NyQuil (which helped in the past) tonight? Determine where vectors AB and CD have same direction, opposite, or neither.
A=(12,4) B=(0,12) C=(-10,15) D=(11,1)?

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