A. 2/5(x+2y-3)2-3/5(2x-y+4)2 =1
B. 2/5(2x+y+3)2-3/5(x+2y-3)2 =1
C. 2(2x-y+4)2-3(x+2y-3)2 =1
D. 2(x+2y-3)2-3(2x-y+4)2 =1
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