5X+3 3X--11------- --- ---------X--1 1--X
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5X+3 3X--11------- --- ---------X--1 1--X
5X+3 3X--11
------- --- ---------
X--1 1--X
5X+3 3X--11------- --- ---------X--1 1--X
(5x+3)/(x-1)-(3x-11)/(1-x)
=(5x+3)/(x-1)+(3x-11)/(x-1)
=(5x+3+3x-11)/(x-1)
=(8x-8)/(x-1)
=8
=8
(5x+3)/(x-1)-(3x-11)/(1-x)
=(5x+3)/(x-1)+(3x-11)/(x-1)
=(5x+3+3x-11)/(x-1)
=8(x-1)/(x-1)
=8
*-----------------------------------------------*| 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
5X+3 3X--11------- --- ---------X--1 1--X
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
3(x^4)^6-2(x^5×x^3)^3+x^11×x^13+x^20×x^3×x
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?
用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+.
解方程:x-5/x-3+x-11/x-9=x-9/x-7+x-7/x-5急
求x^2-3x/x^2-6x+9*x^2-11x+30/x^2-5x-1
2x-1/x+1+3x+1/x+2-5x-11/x-1=
(x+3)(x+10)= (x-5)(x-11)= (x+8)(x-7)=
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550必须用解方程
计算:(x^2+6x+10)/(x^2+6x+9)+(x^2-11)/(x^2-9)+(2x^2+8x+5)/(x^2+4x+3)
|x-5|+|x-3|
3x-|x+5|
(x+3)(x-5)
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
(x+3x+5x...+2009x)-(2x+4x+6x+...+2010x)