x-1/5x=32

2x(7-3x)+5x(2x+1)=x(4x-3)+32 x/x-4 - 32/x的平方+16=1 x+1/x + 5X/x+1=6 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 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=? 提取公因式:已知x*x-5x+1=0 求x*x*x-4x*x-4x-1 已知3x*x-x=1,求6x*x*x+7x*x-5x+2000 1、1/2x=2/x+32、x/x+1=（2x/3x+3）+13、2/x-1=4/x²-14、5/x²+x-1/x²-x=0 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-1/5x=32 解下列方程!就三道!都来看看吧!急死我了!1、x/(x-2) - (1-x²)/x²-5x = 2x/x-32、5x/(x²+x-6) - (5-2x)/x²-x-12=7x-10/x²-6x+83、x-4/(x-5) + (x-8)/x-9=x-7/(x-8) + (x-5)/x-6 (x-5)(x-4)=102x²+x+3=03x²-32x-48=03x²+6x=1 *-----------------------------------------------*| 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 ||