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-8 x^7-12 x^6+32 x^5 y^2+8 x^5-32 x^3 y^4-121 x^3 y^2-96 x^2 y^4+54 x^2 y^2+72 x y^4+32 y^6-27 y^4=0 の二重接線を 多様な発想で求めて下さい; https://math.stackexchange.com/questions/2428815/the-common-tangent-of-two-tilted-parabolas # を 味読し 「模倣犯」になり(下がり) The common tangent of two curve as c1=0,c2=0 をも願います; c1の君の名は;________________ c2の君の名は;________________