x-1/4.6=0.5/0.23
x-1/4.6=0.5/0.23
先化简再求值先化简再求值:(x-x/x+1)(x+1/x^2+4x+4)(x^2-4/x^2-2x),其中x=-0.5
(X-4)(x-2)-2(X-1)(X+3)其中X=-0.5
x-2/0.2-x+1/0.5=3 x=?
f(x)=x/(1+x^2)^0.5
解方程:2+x=2x+1 0.5x=3.4+x 4-0.5x=-x
求1/2x^2-1/4x+0.2x^3+0.25x-0.5x^2-1/5x^3+0.5x-1 其中x=12/13
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
x/x平方-x+2=2x/x+1
x-1:4.6=0.5:0.
3.2+x=4.6 x-2.08=5.76 1.2x=0.84 3x+0.5x=4.2 4x-2.16=1.2 x-0.
1、0.5x+30=15.5x 2、3.2x-12.6=1.2x