2x^2-3√6x=6=0

(x+2)(x-3)(x-6)(x-1)=0 已知1+x+x^2+x^3=0,求x+x^2+x^3+x^4+x^+x^6+x^7+x^8的值 如果1+x+x^2+x^3=0,求x+x^2+X^3+x^4+x^5+x^6+x^7+x^8的值, 1/(x*x-2x-3)+2/(x*-x-6)+3/(x*x+3x+2)=0 5(x的2次方+X-3)-4x(6+x)+x(-x+4)=0 x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? xy²/(x²y-y) × x²/(x²+x)=(x²-3x)/(x²-5x) × 2x-10/(x²-6x+9)=化简求植x²-1/(x²-x-2)除以x/2x-4,其中x=1/2[x-x/(x+1)]除以[x/(2x-4)] ,其中x=√2+1 解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6) 2x+3x+4x+5x+x+6x+7x=100 x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=? X(x平方-6x-9)-x(x平方-8x-15)+2x(3-x)其中x=-六分之一 若2x-3y+4=0则x（x*x-1)+x(5-x*x)-6y+7 已知x=13/(4+根号3),求(x^4-6x^3-2x^2+18x+23)/(x^2-8x+15) 的值 禁止复制粘贴：x=13/(4+√3)=4-√3√3=4-x3=x²-8x+16x^2-8x+13=0,所以x^2-8x+15=2；x^4-6x^3-2x^2+18x+23=x^2(x^2-8x+13)+2x^3-15x^2+18x+23=2x(x^2-8x+13)+x^2-8x+23=x^2-8x+2 x(x+2)(x+6)+20x+6=0 (x^-2x)^-5(x^-2x)-6=0 6/(x-1)-(x+2)/x(x-1)=0 lim(X->0)(7x^6+2x-1)/(2x^6+x+3)=? 3.268=3X()+2X()+6X()+8X()