0.5x-1.5=-1.25x

0.5x-1.5=-1.25x x+ x+(x*50%)=1.5X? 1.5x+27=30+0.5x 1.5x+27=30+0.5x y=(3x^2-x√x+5√x-9)/√x 求导我算到4.5x^0.5-1+2x+4.5x^1.5 , 我的.m函数如下：function F = myfun(x)F = [(2*x(1)+3*x(2)+x(3))^2*(x(1)+x(2))*(1-x(3))/((1-x(1)-x(2))*(2-0.5*x(1))^0.5*(1+3+1.5*x(1)+2*x(2))^1.5)-3.46e+11;(2*x(1)+3*x(2)+x(3))^3*(x(1)+x(2))*(1-x(3))/((1-x(1)-x(2))*(1-x(2)-x(3))^0.5*(1+3+1.5*x(1 （X+X)+(X-X)+(X*X)+(X/X)=100 1.5x=x-1.6＊x x+(x-1.4)+1.5x=33. 30/x=30/(x-1.5)-x 0.5X+120+0.3X=X 4X+0.5X=13.5X x-30-0.2x=0.5x x-0.3x-0.5x=20 9x+0.5x+x= 一些带有两个x的方程,x+3.5x=9.94.25x-x=4.5510x-2.7x=58.46.8x+3.2x=1007x+0.5x=1.5 1.5-X=0.5 15.6-2(x-13)=23+x和1.5(x-9)=0.5x+3.5算式