(1) X^3+7X+8 (2) 2a^2+b^2+3ab+a-b-6

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/22 15:46:11
(1)X^3+7X+8(2)2a^2+b^2+3ab+a-b-6(1)X^3+7X+8(2)2a^2+b^2+3ab+a-b-6(1)X^3+7X+8(2)2a^2+b^2+3ab+a-b-6(1)(

(1) X^3+7X+8 (2) 2a^2+b^2+3ab+a-b-6
(1) X^3+7X+8
(2) 2a^2+b^2+3ab+a-b-6

(1) X^3+7X+8 (2) 2a^2+b^2+3ab+a-b-6
(1)(x+1)(x^2-x+8)
(2)(2a+b-3)(a+b+2)

(1)原式=x^3+1+7(x+1)=(x+1)(x^2-x+1)+7(x+1)=(x+1)(x^2-x+8)
(2)原式=(2a+b-3)(a+b+2)

*-----------------------------------------------*| 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 1/a-x-1/a+x-2x/a^2+x^2-4x^3/a^4+x^4+8x^7/x^8-a^8 计算:1/(a-x)-1/(a+x)-2x/(a^2+x^2)-4x^3/(a^4+x^4)-8x^7/(a^8+x^8) 计算:1/(a-x)-1/(a+x)-2x/(a^2+x^2)-4x^3/(a^4+x^4)+8x^7/x^8-a^8 1/(a-x)-1/(a+x)-2x/(a^2+x^2)-4x^3/(a^4+x^4)+8x^7/(x^8-a^8) EXCEL两表间同时满足两个条件数据引用如题:表1为原始数据表1 2 3 4 5 6 7 8 9 10.A X X X X X X X X X XB X X X X X X X X X XC X X X X X X X X X XD X X X X X X X X X X .表2(A列) (B列) (C列)A 1A 3B 8B 5C 2D 3...... (1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8(2) 已知x+3/(x-2)^2=A/x-2 + B/(x-2)^2 ,求A和B的值. 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 a+x/x+1 ,x/x^2-2x-3 ,a/x^2+4x+3 {1} 1/(a-x)-1/(a+x)-2x/(a^2+x^2)-4x^3/(a^4+x^4)-8x^7/(x^8-a^8){2} 1/{x(x+1)}+1/{(x+1)(x+2)}+1/{(x+2)(x+3)}+1/{(x+3)(x+4)} 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 分解因式:1、x^3-x^2-x-2 2、x^4-6x^2-7x-6 3、x^8+x+1 4、x分解因式:1、x^3-x^2-x-22、x^4-6x^2-7x-63、x^8+x+14、x^4+1/4y^45、18a^2-a^4-81 解下列分式方程:(1)X/(X-2)+(X-9)/(X-7)=(X+1)/(X-1)+(X-8)/(X-6)还有几道 (2)(X+2)/(X+1)-(X+4)/(X+3)=(X+6)/(X+5)-(X+8)/(X+7) 解关于X的方程(2a)/(x-1)=2-a过程讲仔细点啊! 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/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=? 化简算式4X(2x-7)-2X(x-1)、6X(4x-4)、6-3X(2-x)、5x-3X(2-x)、a+a-(a-1)、38+2X(2-x)、x-9x+8x格式:3X(x+1)+2x=3x+3+2x=5x+3