(2/1X-3)+X=(2X-16)+X(+16)

x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x x*x+2x+x*x+10x+x*x+25+2x+x*x+1+1+16+x*x+4x*x+9-12x+16x*x+4-1 解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6) 化简：[√(x^2-6x+9)/x^2-x-12]*(x^3-16x)/(x^2-3x)-1/(x+3) {x＞3} 已知x^2-3x+1=0 求x^4+3x^3-16x^2+3x-17 x+(1/x)=3,求x^4+3x^3-16x^2+3x-17的值 已知x+1/x=3,求x^4+3x^3-16x^2+3x-17的值 x+1/x=3,求x^4+3x^3-16x^2+3x-17的值 已知实数x满足(x+1)(x-2)(x+3)(x-4)+16=0,求代数式x2-x+1 x^4+x^3+x^2+x+1=0,x^2006+x^2005+x^2004+x^2003+x^2002 解方程：(x^2+3x+1)/(4x^2+16x-1)-(12x^2+18x-3)/(x^2+3x+1)=2 x-1)(X-2)(x-3)...(x-50)+x(x-2)(X-3)...(X-50)+...+x(x-1)(x-2)