Bài 1: a) x (y-1) = -28 b)x^2.(y-3)= -8 c)(x-1).(y+2)^2=7 d)(2x-1).(2y+1)=-35

Bài 1: a) x (y-1) = -28 b)x^2.(y-3)= -8 c)(x-1).(y+2)^2=7 d)(2x-1).(2y+1)=-35
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