2(x-1)(x+1)+6(x-1)(x+1)=7(x-1)(x+1)求解答,
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
求解答(x- x/x²-1)/(2+1/x-1 - 1/x+1)
若1+x+x*x+x*x*x=0,求x+x*x+x*x*x+.+x(2000次幂)
(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,
5x-3(2x+1)=6x-4(5-3x)求x
(x-1)(x-2)(x-3)(x-4)=(x+5)(x+6)(x+7)求X等于几?
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
已知1+x+x^2+x^3=0,求x+x^2+x^3+x^4+x^+x^6+x^7+x^8的值
已知3x*x-x=1,求6x*x*x+7x*x-5x+2000
(1) (x²-9分之x+3 + 6+x-x²分之x)乘4x-6分之3-x (2)解答题:已知2x-
求函数Y=(X·X-2X-1)/(X·X-5X-6)的值域?