作业帮x^2-6x+9/x^2-x-6 * x^2-7x+10/x^2-9 * x+3/2(x-5)怎么算?
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/18 19:51:34
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x^2-6x+9/x^2-x-6 * x^2-7x+10/x^2-9 * x+3/2(x-5)怎么算?
x^2-6x+9/x^2-x-6 * x^2-7x+10/x^2-9 * x+3/2(x-5)怎么算?
x^2-6x+9/x^2-x-6 * x^2-7x+10/x^2-9 * x+3/2(x-5)怎么算?
原式=(x-3)^2/【(x-3)*(x+2)】*(x-2)(x-5)/【(x+3)(x-3)】*(x+3)/【2(x-5)】=(x-2)/【2(x+2)】
原式=（a^2-a+3a+1)*(a^2-a-3a-1)=(a^2+2a+1)*(a^2-4a-1)=(a+1)^2 *(a^2-4a-1) 第三个把已知式化成（x-3)^2+(y-4)^2
这个是要算啥啊？？就是个多项式啊！化简？？
x(x*x-6x-9)-x(x*x-8x-15)+2x(3-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
*-----------------------------------------------*| 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 ||
约分：1、x*x-9/6-2x 2、x*x-1/x-x*x
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
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
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
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
x^2+9x/x^2+3x+x^2-9/x^2+6x+9
计算:(x+2)/(x^2 - x - 6) + 2x/(x^2 - 3x) - x/(x^2 - 6x + 9)
(x+2/x^2-x-6)-(2x/x^2-3x)-(x+1/x^2-6x+9)
x+2/x^2-x-6 + 2x/x^3-3x - x+1/x^2-6x+9
X(x平方-6x-9)-x(x平方-8x-15)+2x(3-x)其中x=-六分之一
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
x-x^2/6