(x-1)/(x^2-5x+6)+(x-2)/(x^2-4x+3)+(x-3)/(x^2-3x+2)还有一道：(1-4x)^2/2x+3*(4x^2+12x+9)/(4x-1)(1-4x)^2/（2x+3）*(4x^2+12x+9)/(4x-1)第二题应该是这样的、不好意思、要有过程！

来源：学生作业帮助网 编辑：作业帮 时间：2024/11/16 03:29:15
(x-1)/(x^2-5x+6)+(x-2)/(x^2-4x+3)+(x-3)/(x^2-3x+2)还有一道：(1-4x)^2/2x+3*(4x^2+12x+9)/(4x-1)(1-4x)^2/（2x+3）*(4x^2+12x+9)/(4x-1)第二题应该是这样的、不好意思、要有过程！
x]KPǿʹ<ْ/Bf L "0Rdj_lSP9 3*%ʫ"YeߵpQ !֘ A0#>g>^KRD!@$8B&OػL՗anw<5a#f/U9xpmg"bҹ=8:Q6-ߵZMWaJdl;g0*`F8D""C(ĘDl$Dv= ,(m(G\IQ-搓:/cfUKX{,\n(1}6=#6(-o /H阄Ʉ恘b>)~}LP(,+>8L:c9ۜl]&6cg =e-_gVO

(x-1)/(x^2-5x+6)+(x-2)/(x^2-4x+3)+(x-3)/(x^2-3x+2)还有一道：(1-4x)^2/2x+3*(4x^2+12x+9)/(4x-1)(1-4x)^2/（2x+3）*(4x^2+12x+9)/(4x-1)第二题应该是这样的、不好意思、要有过程！
(x-1)/(x^2-5x+6)+(x-2)/(x^2-4x+3)+(x-3)/(x^2-3x+2)
还有一道：(1-4x)^2/2x+3*(4x^2+12x+9)/(4x-1)
(1-4x)^2/（2x+3）*(4x^2+12x+9)/(4x-1)
第二题应该是这样的、不好意思、要有过程！

(x-1)/(x^2-5x+6)+(x-2)/(x^2-4x+3)+(x-3)/(x^2-3x+2)还有一道：(1-4x)^2/2x+3*(4x^2+12x+9)/(4x-1)(1-4x)^2/（2x+3）*(4x^2+12x+9)/(4x-1)第二题应该是这样的、不好意思、要有过程！
(x-1)/(x^2-5x+6)+(x-2)/(x^2-4x+3)+(x-3)/(x^2-3x+2)
= (x-1)/{(x-2)(x-3)} + (x-2)/{x-1)(x-3)} + (x-3)/{(x-1)(x-2)}
= { (x-1)^2 + (x-2)^2 + (x-3)^2 } / { (x-1)(x-2)(x-3) }
= (x^2-2x+1+x^2-4x+4+x^2-6x+9) / { (x-1)(x-2)(x-3) }
= (3x^2-12x+14) / (x-1)(x-2)(x-3)
(1-4x)^2/(2x+3) * (4x^2+12x+9)/(4x^2-1)
= (4x-1)^2/(2x+3) * (2x+3)^2/(4x-1)
= (4x-1) * (2x+3)
= 8x^2+10x-3

一、(x-1)/(x^2-5x+6)+(x-2)/(x^2-4x+3)+(x-3)/(x^2-3x+2) =(x-1)/【（x-2)(x-3)】+(x-2)/【(x-1)(x-3)】+(x-3)/【(x-1)(x-2)】=[(x-1)^2+(x-2)^2+(x-3)^2/【(x-1)（x-2)(x-3)】=[(x-1)^2+(x-2)^2+(x-3)^2/【(x-1)（x-2)(x-3)】=(3x...

全部展开

一、(x-1)/(x^2-5x+6)+(x-2)/(x^2-4x+3)+(x-3)/(x^2-3x+2) =(x-1)/【（x-2)(x-3)】+(x-2)/【(x-1)(x-3)】+(x-3)/【(x-1)(x-2)】=[(x-1)^2+(x-2)^2+(x-3)^2/【(x-1)（x-2)(x-3)】=[(x-1)^2+(x-2)^2+(x-3)^2/【(x-1)（x-2)(x-3)】=(3x^2-12x+14)/【(x-1)（x-2)(x-3)】
二、(1-4x)^2/（2x+3）*(4x^2+12x+9)/(4x-1)=-(1-4x）*（2x+3）

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 || 填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x x^6-x^5+x^4-x^2+x-1 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 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 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 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 解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6) x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=? (5x+1)X(6x+2).. 解决数独问题x 1 x 7 x x x 3 xx x x x 4 x 2 x x9 x 3 6 x 8 7 x 58 x x x x 9 x x xx x 2 x 5 x x x 4x 3 x x x x 6 x xx x x x x x x x 26 x x x x x x x 7x 5 4 1 7 x 9 8 x这道题我用了很多办法都没有头绪,请帮忙的朋友把解题的思 1+x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11+x^12=97.8x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11+x^12=97.8 好多年没有用过过数学公式了 想不起来怎么算了 想知道 X值是多少 已知x=2π+1求 |x-1|+|x-2|+|x-3|+|x-4|+|x-5|+|x-6|+|x-7|+|x-8|+|x-9|+|x-10| 已知x=2π+1.求(X-1)+(X-2)+(X-3)+(X-4)+(X-5)+(X-6)+(X-7)+(X-8)+(X-9)+(X-10) 如果1+x+x^2+x^3=0,求x+x^2+X^3+x^4+x^5+x^6+x^7+x^8的值, 1+x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11=17.7这个方程怎么样求解? 请大神帮我解这个数独 题,我解了很久 了 ,最后 X X X X 3 X 1 5 XX X X X 7 8 6 X 92 9 X X X X X X 7X X X X 6 X 2 X 3X 1 3 7 2 9 4 8 X4 X 2 X 8 X X X X3 X X X X X X 6 48 X 6 3 9 X X X X X 7 1 X 4 X X X X 在9x9的方格中,把1——9这9个数字填入方格中,每行每列都填这9个数,横竖都不能重复,8 X X X X X X X X X X 3 6 X X X X X X 7 X X 9 X 2 X XX 5 X X X 7 X X XX X X X 4 5 7 X XX X X 1 X X X 3 XX X 1 X X X X 6 8X X 8 5 X X X 1 XX