Question
Which equation is the general form of (x−2)2−(y+5)2=18?
 
x^2−y^2−4x−10y=1
 
x^2−y^2−4x−25y=11
 
x^2−y^2−4x−10y=39
 
x^2−y^2−4x+25y=18

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