(1-X^5)/(1-X)=9.72
来源：学生作业帮助网 编辑：六六作业网 时间：2024/12/20 14:16:48
(1-X^5)/(1-X)=9.72(1-X^5)/(1-X)=9.72(1-X^5)/(1-X)=9.72a^5-b^5=(a-b)(a^4+4a^3b+6a^2b^2+4ab^3+b^4)所以.约
(1-X^5)/(1-X)=9.72
(1-X^5)/(1-X)=9.72
(1-X^5)/(1-X)=9.72
a^5-b^5=(a-b)(a^4+4a^3b+6a^2b^2+4ab^3+b^4)
所以.约去1-X
1+4x+6x^2+4x^3+x^4=9.72
x(x^3+4x^2+6x+4)=8.72
试算法.明显：0
*-----------------------------------------------*| 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.x-5x+1=0,那么x.x+1/x.x
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
x(x-2)-2x(x+1)-3x(x-5) 其中x=负½
(x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x
(1-X^5)/(1-X)=9.72
提取公因式:已知x*x-5x+1=0 求x*x*x-4x*x-4x-1
f(x,-x)=x^2+2x,fx(x,-x)=5x+1,则fy(x,-x)=
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
已知3x*x-x=1,求6x*x*x+7x*x-5x+2000
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+1=5x,x=
写过程x(x-1)+2x(x+1)-3x(2x-5)-x(3x-2)+2x(2-x)=-5x(x-2)-4
X(X-1)=X
5x/x(1+x)=6/1+x
x+x+1=(10x+x+1)×5
(x+7)(x+5)-(x+1)(x+5)=42