x-2x+3x-4x+5x.+99x-100x=25求解
1x+2x+3x+4x+5x+6x+7x…+99x=100
解方程:2x+4x+6x...+100x=1-(x+3x+5x+...+99x)
x-2x+3x-4x+...+99x-100x=25
2x+3x+4x+5x+x+6x+7x=100
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
(-3x)+4=(-5x)+8 求解X
(X+X)+(X-X)+(X*X)+(X/X)=100
求解方程(x-1)/(x²-5x+6)+(x-2)/(x²-4x+3)=(x-3)/(x²
二元二次方程求解过程f(x)=2x-5 g(x)=3x^+4
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
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