化简：x·[(60-2x)÷2]

[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 化简(x^2-2x+1)/(x^2+1)÷(x-1)/(x^2+x)-x 化简：〔（x^2+18x+72)÷（x+12)-(x^2+5x-6)÷(x-1)〕·(x^3-2x^2-x+1) 化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x 化简 [3x/(x+2)-x/(x=2)]÷x/(x^2-4)化简 [3x/(x+2)-x/(x-2)]÷x/(x^2-4 3x/(x-2)-x/(x+2)÷2x/(x-4)化简3x/（x-2）-x/(x+2)÷2x/(x²-4)化简 化简：2|x| -3x÷|2x-|5x|| 化简||x|-2x|÷(|x-3|-|x|) 化简：2x-6/4-4x+x²÷（x+3）·x（x+3）-2（3+x）/3-x 化简（x^2-4x+4/2x)÷(x^2-2x/x^2)+1 化简(2x/x+2-x/x-2)÷x/x^2-4 化简(x^2-1)(x+1)/x^2-x÷(1 +x^2+1/2x) 化简(x^2-4x+4)/(x^2-2x)÷(x-4/x) 求解 化简(3x/x-2-x/x+2)÷2x/x平方-4 化简：[(x-4)/(x-2)]+[4/(x的平方-4x+4)]÷[x/x-2] 化简：x·[(60-2x)÷2] 计算：（1+1/x）·x²-2x+1/x²-1；（x²/x-1-2x/1-x）÷x/x-1. 计算①x²-4／x²-4x+3÷x²+3x+2／x²-x②2x+6／4-4x+x²÷(x+3)·x²+x-6／3-x