X÷4+4X÷4=6.

化简 [3x/(x+2)-x/(x=2)]÷x/(x^2-4)化简 [3x/(x+2)-x/(x-2)]÷x/(x^2-4 2x^2-4x/x+2`x^2+2x/x^2-4x+4÷x/3x-6,其中x=根号3/2 2x^2-4x/x+2`x^2+2x/x^2-4x+4÷x/3x-6,其中x=根号3/2 x(2-1/x)+x/(x^2-2x)÷(3-x)/(x^2-4)2.2/3+x/(3x-1)=1/9x-3 先化简,再计算2x^-18/4-4x+x^ ÷ 3-x/x^+x-6,其中x=4 【{x²-4x+4/x²-4}-x/x+2】÷x-1/x+2 [(x-4)/(x-4x+4)-(x-2)/(x+2)]÷x/(x-2) 先化简再求值(x/x-2-x/x+2)÷4x/x-2,其中x=1 先化简再求值[3x/(x+2)-x/(x-2)]÷2x/(x^2-4)x=2010 化简求值：(3x/x+2-x/x-2)÷2x/x^2-4,x=-3 [x^2+2x-8/x^3+2x^2+x]÷[(x-2/x)×(x+4/x+1)]化简[x^2+2x-8/x^3+2x^2+x]÷[(x-2/x)×(x+4/x+1)]化简 3x/(x-2)-x/(x+2)÷2x/(x-4)化简3x/（x-2）-x/(x+2)÷2x/(x²-4)化简 1.x²+3x/x²+2x -x²-4/x²+4x+4 2.a²/a+b-a+b 3.(1-1/a-2)÷3-a/2a-44.(x-1/y)÷（y-1/x) 5.3-x/x-4+1/4-x=1 6.x-2/x+2-1=3/x²-4 7.5/x-1=1/x+38.x+1/x-2+x+2/x-1=2 (x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3 (x-4)+(x+4)+(x÷4)+4x=250 x是多少 先化简再求值:x^3-2x^2+4x/x^2-4x+4÷x^2-2x+4/x-2,其中x=4 【化简求值】(x分之x+2 - x-2分之x-1)÷x分之x-4【化简求值】(x分之x+2 - x-2分之x-1)÷x分之x-4x=3 先化简再求值：（x+2/x²-2x - x-1/x²-4x+4）÷ x-4/x,其中x=3/2