50+5求方程1.(X+2)^-4X=02.(3X+2)(X+4)=7(X+4)
解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3
方程(x-1/x-2)-(x-3/x-4)=(x-2/x-3)-(x-4/x-5)解为x=7/2,(1/x-7)-(1/
解方程 x(2x-4)+3x(x-1)=5x(x-3)+8
解方程(x-2)/(x-3)-(x-3)/(x-4)=(x-5)/(x-6)-(x-6)/(x-7)
解方程:(x+3)/(x+2)-(x+5)/(x+4)=(x+7)/(x+6)-(x+9)/(x+8)
(x-1)(x-2)(x-3)(x-4)=(x+5)(x+6)(x+7)求X等于几?
解方程:2x+4x+6x...+100x=1-(x+3x+5x+...+99x)
已知1+x+x^2+x^3=0,求x+x^2+x^3+x^4+x^5+x^6+x^7+x^8的值
方程(x+1)(x+2)(x+3)(x+4)(x+5)(x+6)(x+7)(x^2+8x+9)+64=0
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
已知x=2π+1求 |x-1|+|x-2|+|x-3|+|x-4|+|x-5|+|x-6|+|x-7|+|x-8|+|x
1X?+2X?+3X?+4X?+5X?+6X?+7X?+8X?+9X?+10X?=1980求?是多少