5x/(x-2)-2=3(x-2)/x

来源：学生作业帮助网编辑：六六作业网时间：2024/11/22 01:18:49

5x/(x-2)-2=3(x-2)/x5x/(x-2)-2=3(x-2)/x5x/(x-2)-2=3(x-2)/x5x/(x-2)-2=3(x-2)/x通分得：5x^2-2x(x-2)=3(x-2)^

5x/(x-2)-2=3(x-2)/x
5x/(x-2)-2=3(x-2)/x

5x/(x-2)-2=3(x-2)/x
5x/(x-2)-2=3(x-2)/x
通分得：
5x^2-2x(x-2)=3(x-2)^2
即5x^2-2x^2+4x=3x^2-12x+12
所以16x=12
所以x=3/4
检验下,不是增根,符合
如果不懂,祝学习愉快!

x²-5x-2014=0
x²-5x=2014
是这个吗
[(x-2)³-(x-1)²+1]/(x-2)
=(x-2)²-[(x-1)²-1]/(x-2)
=(x-2)²-[(x-1)-1][(x-1)+1]/(x-2)
=(x-2)²-x(x-2)/(x-2)
=x²-4x+4-x
=x²-5x+4
=2014+4
=2018

5x/(x-2)-2=3(x-2)/x
[5X-2(X-2)]/(X-2)=(3X-6)/X
(3X+4)/(X-2)=(3X-6)/X
(3X+4)X=(X-2)(3X-6)
3X²+4X=3X²-12X+12
16X=12
X=3/4

*-----------------------------------------------*| 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 x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? (x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3) 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-2x+3x-4x+5x.+99x-100x=25求解 2x+3x+4x+5x+x+6x+7x=100 x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=? x^5-2x^3+x=? 写过程x(x-1)+2x(x+1)-3x(2x-5)-x(3x-2)+2x(2-x)=-5x(x-2)-4 x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4 (x+3x+5x...+2009x)-(2x+4x+6x+...+2010x) x(x*x-6x-9)-x(x*x-8x-15)+2x(3-x) 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 x/x-3-5x/x^2-x-6计算 x^5-x^4+x^3-x^2+x-1