5000(1-x%)*2=4050咋算,
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
(x)-2x·x-x-2x+1=0求x的值,
5000(1-x)(1-x)=4050
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-1)/x -(1-x)/(x+1)=(5x-5)/(2x+2) x等于多少
解方程1/x(x+1)+1/(x+1)(x+2)+...+1/(x+8)(x+9)=2x+3/x(x+9)
已知X不等于0,且M=(X²+2X+1)(X-2X+1),N=(X²+X+1)(x²-X+
解方程:1\x(x+1)+1\(x+1)(x+2)+.+1/(x+8)(x+9)=2x+3\x(x+9)
6/(x+1)=(x+5)/[x(x+1)] (3-x)/(x-4)+1/(4-x)=1 2/(1+x)-3/(1-x)
x(x^2-1)+2x^2 *(x+1)-3x*(2x-5)=x(3x^2-4x)-28
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x