2x-3/x^2-x-A/x-1+B/x求A+B

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/29 00:39:06
2x-3/x^2-x-A/x-1+B/x求A+B

2x-3/x^2-x-A/x-1+B/x求A+B
2x-3/x^2-x-A/x-1+B/x求A+B

2x-3/x^2-x-A/x-1+B/x求A+B
2x-3/x^2-x=A/x-1+B/x
2x-3=Ax+B(x-1)
=(A+B)x-B
∴A+B=2
B=3

x^2-6x+5= A(x-2)(x-3)B(x-6)(x+1) 2x-3/x^2-x-A/x-1+B/x求A+B 若多项式2x*x*x*x-3x*x*x+ax*x+7x+b能被x*x+x-2整除,求a:b *-----------------------------------------------*| 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 || a+x/x+1 ,x/x^2-2x-3 ,a/x^2+4x+3 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 七年级下册政治复习提纲(山东人民出版社)第五单元是 青春的脚步 青春的气息别弄错了啊!格式:X X X X X X X X X 1、X X X X X X X X X X.2、X X X X X X X X X.3、X X X X X X X X X X X. 若A={x|(1/2)^(x+2)(x-3)>1}B={x|(3a-x)/(x-a) 3x/6x^2z a+b/a^2-b^2 x^2+2x+1/x^2+x 3x-6/x^2-4x+43x/6x^2z a+b/a^2-b^2x^2+2x+1/x^2+x3x-6/x^2-4x+4y-x/x^2-y^22x^2-10x/x^2-10x+25约分:3x/6x^2z a+b/a^2-b^2x^2+2x+1/x^2+x3x-6/x^2-4x+4y-x/x^2-y^22x^2-10x/x^2-10x+25 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...... x/a^2-bx+x/b=1 (a,b不等于0)x-8/x-3-x-9/x-4=1/x+3-1/x+8 已知a(x*x+x-c)+b(2x*x-x-2)=7x*x+4x+3x.求a,b,c的值 已知f(x+1)=x²-2x,则f(x)= A.x²-4x+3 B.x²-4x C已知f(x+1)=x²-2x,则f(x)=A.x²-4x+3 B.x²-4x C.x²-2x+1 D.x²-2x 十字相乘法分解因式(只要答案) x*x-2x-1 x*x-2ax-3a*a a*a*a-b*b*b x*x+x-(y*y+y)x*x-2x-1 x*x-2ax-3a*a a*a*a-b*b*b x*x+x-(y*y+y) (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. 1.4x*(x平方-1/2x-1)2a(a-4b)-b(a+2b) 3.(x+2)(x-4)-x(1-2x)4.6x(x+1)-(2x+3)(3x-1) (X²+4x+8)²+3x(x²+4x+8)+2x²因式分解 (X²+4x+8)²+3x(x²+4x+8)+2x²(2x²-3x+1)²-22x²+33x-1(x²+x+1)(x²+x+2)-12(6x-1)(2x-1)(3x-1)(x-1)+x²ab(a+b)²-(a+b)²+1x²+xy-6y 已知集合A={x/ x^2+3x-18>0},B={x/ (x-k)(x-k-1)=