555번부터8,-6,-1,-8,-3x-7y,3x-8y,5x+15y,3y-2,-5y,-2y-1 565부터 569번은 분수이므로제외 570번부터7x-9,2x-3,-x제곱+4x+1,2,4,4,1,5,-사분의일,5
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