5x+4=14,那么9x-5x+18=()
f(x)=x平方-5x+4,g(x+1)=f(x)那么g(x)=?
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
f(x)=x²-5x+4,g(x+1)=f(x),那么g(x)=( )
x-4/x-5 - x-5/x-6=x-7/x-8 - x-8/x-9求x=?
已知(x+1)(x²+2x+3)=x³+3x+5x+3,那么,将x³+3x²+5
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1
设函数f(x)=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10),
求方程解x-5/x-4+x-9/x-8=x-8/x-7+x-6/x-5
x-4/x-5-x-7/-x-8=x-5/x-6-x-8/x-9