x^2-4x+4/x-2【化简】(4)x的是2次方、（5）分数线上下都是2次方（1）3/(2a^2b)与（a-b）/(ab^2c)【将分式化成字母相同的分式】(3）1/(4x-2x^2)与1/(x^2-4)(2)应该没有看不清的吧,题后面那个是分号,不是立

*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X || (x/x-2-x/x+2)/4x/x-2 1/(1-x)+1/(1+x)+2/(1+x*x)+4/(1+x*x*x*x)+8/(1-x*x*x*x*x*x*x*x)怎么做 化简：[(x+2)/x-(x-1)/(x-2)]/[(x-4)/(x^2-4x+4)] [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-2x+3x-4x+5x-.+2011x-2002x 化简:X-2X+3X-4X+5X-……+2001x-2002x (x/x-2)+(2/x*2+2x)-(x+6/x*2-4)化简,=x^2/x(x-2)+(2x-4)/x(x^2-4)-(x^2+6x)/x(x^2-4)=x^2/x(x-2)-(x+2)/x(x-2)=(x-2)(x+1)/x(x-2)=(x+1)/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 X(X-4)^2 |-x+2|+|4+x| x^4-x^2 (x^2-4)x x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4 通分x+4/x*x+4x与x-5/x(x-5)-2(x-5) (x+3x+5x...+2009x)-(2x+4x+6x+...+2010x) x(x+2)(x-2)-4x^2+8x