((x^2+4x+4)/(x^2-6x+9))-2+((9-6x+x^2)/(4+4x+x^2))*( (x^2-x-6)/(4x^2-4x+1))

来源：学生作业帮助网 编辑：作业帮 时间：2024/11/16 10:42:07
((x^2+4x+4)/(x^2-6x+9))-2+((9-6x+x^2)/(4+4x+x^2))*( (x^2-x-6)/(4x^2-4x+1))
x)Ш3661u*-55u54,APP5@)CMM"}j_`gCu=.gtΊg^rьk<[ءtާą$AbDcuE X]= `M6Ҍ3k >LB(V ,kUQC4I}Hl^]@'a/W<8鞆}KMt-ru mxm3E1\TPT+rCҦPaS0Xx6eۋۑdw

((x^2+4x+4)/(x^2-6x+9))-2+((9-6x+x^2)/(4+4x+x^2))*( (x^2-x-6)/(4x^2-4x+1))
((x^2+4x+4)/(x^2-6x+9))-2+((9-6x+x^2)/(4+4x+x^2))*( (x^2-x-6)/(4x^2-4x+1))

((x^2+4x+4)/(x^2-6x+9))-2+((9-6x+x^2)/(4+4x+x^2))*( (x^2-x-6)/(4x^2-4x+1))
朋友啊,我也在找这题答案,命哭啊T^T

[(x^2+4x+4)/(x^2-6x+9) -2+ (9-6x+x^2)/(4+4x+x^2)].(x^2-x-6)/(4x^2-4x+1)
=[(x+2)^2/(x-3)^2+(x-3)^2/[(x+2)^2-2]*(x-3)(x+2)/(2x-1)^2
=[(x+2)/(x-3)-(x-3)/(x+2)]^2*(x-3)(x+2)/(2x-1)^2
=[(4x+...

全部展开

[(x^2+4x+4)/(x^2-6x+9) -2+ (9-6x+x^2)/(4+4x+x^2)].(x^2-x-6)/(4x^2-4x+1)
=[(x+2)^2/(x-3)^2+(x-3)^2/[(x+2)^2-2]*(x-3)(x+2)/(2x-1)^2
=[(x+2)/(x-3)-(x-3)/(x+2)]^2*(x-3)(x+2)/(2x-1)^2
=[(4x+6x+4-9)/((x-3)(x+2))]^2]*(x-3)(x+2)/(2x-1)^2
=[5(2x-1)/((x-3)(x+2))]^2*(x-3)(x+2)/(2x-1)^2
=25/((x-3)(x+2))
=25*1/5*[1/(x-3)-1/(x+2)]
=5/(x-3)-5/(x+2)

收起

*-----------------------------------------------*| 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+3x+5x...+2009x)-(2x+4x+6x+...+2010x) 求一个数独答案X X X 9 X X X 8 2 X 6 3 X X 1 4 X 99 X 8 X X X X X XX X X 6 7 X 3 X XX 4 6 X 5 X 2 9 XX X 7 X 2 3 X X XX X X X X X 7 X 17 X 4 3 X X 6 2 X6 3 X X X 7 X X X x^6-x^5+x^4-x^2+x-1 难倒爱因斯坦的九宫格X 7 X | X 8 1 | X X X |X X X | X 4 X | 7 5 9 |X X 5 | 7 X 9 | X 1 4 |5 X X | X X 8 | 3 9 X |3 9 6 | 4 X 7 | X X 2 |X 8 7 | 9 X X | X X X |4 X X | 6 X 5 | X X X | X X 4 | X X 1 |2 X X | X X X | X X X | X 3 X | X X X |X 6 x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? (x/x-2-x/x+2)/4x/x-2 如下9*9宫图如何填x x x 1 x x x 2 9x x 5 x x x x x 4x 6 8 x x x x x xx x x 7 x x 5 x xx 2 x x 6 x x 8 xx x 3 x x 9 x x xx x x x 5 x 1 6 x 4 x x x 3 x x x x 7 x x x x 2 x x x 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 解九宫格题目（X为未知数）9 X 2 X 7 X 8 X XX X 4 X X 9 X 6 X1 3 X 5 X X X X 24 X X 8 5 X X 1 XX 8 9 4 X 1 6 7 XX 1 X X 3 6 X X 88 X X X X 2 X 3 6X 5 X 6 X X 9 X XX X 7 X 4 X 2 X 1 (2x-6)/(4-4x+x^2)/(x+3)*(x^2+x-6)/(3-x) (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 计算:[(x^2 - 4)/(x^2 - x - 6) + (x+2)/(x-3)] / (x+1)/(x-3) (x-1)/(x+3x+2)+6/(2+x-x)-(10-x)/(4-x) 2x+3x+4x+5x+x+6x+7x=100 x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=? x+2x-3x-4x+5x+6x-7x.-196x+197x+198x-199x-200x 等于多少 (x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3