x/3-y/4=3x+2y ==>4x-3y=36x+24y ==> ① 32x=-27y==>x=-27y/32②(4x-3y)^2=(36x+24y)^2②==>16x^2+9y^2-24xy=1296x^2+576y^2+1728xy==>1280x^2+567y^2+1752xy=0带入①公式 求出x再根据①公式 求出y...