(x+1)"2"=2(x+1)
(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,
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+2/x^2-2x-x-1/x^2-4x+4)/x-4/x ,x=2-根号5.最后等于多少?
判断函数奇偶性,快,f(x)=a(x属于R)f(x)=x^2 (1-x) ,x大于等于0x^2 (1+x) ,x