左边=x/﹙2-x﹚
右边=- (6-X﹚/[3(x+2)(x-2)]=(6-X﹚/[3(x+2)(2-x)]
故可化简为x=(6-X﹚/[3(x+2)]
即3x²+7x-6=0
解得x=2/3 x=-3