化简：-3x（x²+1）-[x³-x（4x²+1）

化简：-3x（x²+1）-[x³-x（4x²+1）].

1个回答

-3x（x²+1）-[x³-x（4x²+1）].
=-3x³-3x-x³+4x³+x
=-2x
如果本题有什么不明白可以追问,
请点击下面的【选为满意回答】按钮,

化简(1-3/1-x)/(x+x-4/x-1)
化简：1/(x+1)(x+2)+1/(x+2)(x+3)+1/(x+3)(x+4)
化简：（3x+1）（2x-3）— 2（x-1）（4x+1）
化简：[1(x+1)(x+2)+1(x+2)(x+3)+1(x+3)(x+4)+1(x+4)(x+5)．
化简：[1(x+1)(x+2)+1(x+2)(x+3)+1(x+3)(x+4)+1(x+4)(x+5)．
化简：[1(x+1)(x+2)+1(x+2)(x+3)+1(x+3)(x+4)+1(x+4)(x+5)．
化简：[1x(x+1)+1(x+1)(x+2)+1(x+2)(x+3)+1(x+3)(x+4)
化简：[1x(x+1)+1(x+1)(x+2)+1(x+2)(x+3)+1(x+3)(x+4)
化简~ (x^4+x^3−x^2−x+1) / (x^3W
化简1/(x+1)(x+2)+1/(x+3)(x+4)+……1/(x+2005)(x+2006)=