解方程:x^3+12x-8-6x^2=0

1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550必须用解方程 (x^2+x)(x^2+x-3)-3(x^2+x)+8=0解方程 解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3 解方程 (x+2)/(x+1) - (x+4)/(x+3)=(x+6)/(x+5)-(x+8)/(x+7) x(3x-2)=.12x-8 解方程 解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6) 解方程4x^4+12x^3-x^2-15x-6=0 解方程(x^2-10x+15)/(x^2-6x+15)=3x/(x^2-8x+15) 解方程:2(x-1)²-(x+3)²=(x-2)(x+6)-12x 解方程5x+2x+3x+8x+6x=140-x-3x (x-1)(x-3)(x-4)(x-12)+5x^2=0解方程 解方程：(4/x-2)+(x-1/x-5x+6)+(2/3-x)=0 解方程:x^3+12x-8-6x^2=0 MATLAb编程解方程clear;clcsyms xfor n=1:6X2=solve('(x-1)*(x-2)*(x-3)*(x-4)*(x-5)*(x-6)*(x-7)*(x-8)*(x-9)*(x-10)*(x-11)*(x-12)*(x-13)*(x-14)*(x-15)*(x-16)*(x-17)*(x-18)*(x-19)*(x-20)+1e-n*x^19=0',x);double(X2)end与直接代入n=1,2,...6算出来 matlab解数值分析题p=(x-1)*(x-2)*(x-3)*(x-4)*(x-5)*(x-6)*(x-7)*(x-8)*(x-9)*(x-10)*(x-11)*(x-12)*(x-13)*(x-14)*(x-15)*(x-16)*(x-17)*(x-18)*(x-19)*(x-20)解为1,2,3……,20取多个非常小的数用软件工具求解方程p（x）+n*x^19=0,并 解方程{3X+X+2X=12}3X+X+2X=12 解方程:(x²+x)(x²+x-3)-3(x²+x)+8=0 解方程2x+4x+6x+8x~+2010x+2012x=1013042