证明(8-7x-6x²+x³)+(x³+5x²+4x-1)-(-x²-
(8-7x-6x²+2x³)+(x³+5x²+4x-1)-(-x²-3
(3x²)³-7x³[x³-x(4x²+1)]
试着说明:(x²+5²+4x-1)-(-x-3x+2x³-3)+(8-7x-6x²
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
(4x³)²×[x³-x(2x-1)]
设x²-x=-1,则3x^4-5x³+8x²-5x+1等于?
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
计算下列各题:(1+x)(x-1/x²+x-1-x/x³-x)
(1)2x的10次方+x的8次方.x²-x.x³.x的6次方
计算:(-x³-3x²+7x-8)-(3x³-2x²-5x+4)-(-x
因式分解:(x³-x²)-x+1
x³-x²-x+1因式分解