4x+1/4(100-x)=100 x等于多少

解方程：2x+4x+6x...+100x=1-(x+3x+5x+...+99x) 1x+2x+3x+4x+5x+6x+7x…+99x=100 已知x^4+x^3+x^3+x^2+x^1+1=0,求x^100+x^99+x^98+x^97+x^96的值 x-2x+3x-4x+5x.+99x-100x=25求解 2x+3x+4x+5x+x+6x+7x=100 （X+X)+(X-X)+(X*X)+(X/X)=100 f(x)=x(x-1)(x+2)(x-3)(x+4)……(x+100),求f'(1) 当x=2,求1/x＊(x+2)+1/(x+2)*(x++4)+1/(x+4)*(x+6)+.+1/(x+98)*(x+100)的值 当x=2,求1/x(x+2)+1/(x+2)*(x++4)+1/(x+4)*(x+6)+.+1/(x+98)*(x+100)的值 x^4+X^3+X^2+X^1+1=0求x^100+X^99+X^98+X^97+X^96的值 已知x^4+x^3+x^2+x+1=0,求x^100+x^99+x^98+x^97+x^96的值. 已知x^4+x^3+x^2+x^2+1=0,求x^100+x^99+x^98+x^97+x^96的值见上 已知x^4+x^3+x^2+x+1=0,求x^100+x^99+x^98+x^97+x^96的值 1/(x+1)(x+2)+1/(x+2)(x+3)+1/(x+3)(x+4)+...+1/(x+100)(x+101) 计算:1/(x+3)(x+4)+1/(x+4)(x+5).1/(x+99)(x+100) 计算1/x(x+2)+1/(x+2)(x+4)+…+1/(x+98)(x+100) 2x+x.2+x.4+1=100 解方程:x-2x+3x-4x+...+99x-100x=25