(8-7x-6x²+2x³)+(x³+5x²+4x-1)-(-x²-3
(8-7x-6x²+2x³)+(x³+5x²+4x-1)-(-x²-3
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
试着说明:(x²+5²+4x-1)-(-x-3x+2x³-3)+(8-7x-6x²
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
(x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3
(3x²)³-7x³[x³-x(4x²+1)]
2x^6×x³-3x^9+5x²×x^7等于多少
计算:(-x³-3x²+7x-8)-(3x³-2x²-5x+4)-(-x
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
(4x³)²×[x³-x(2x-1)]
(2x²-2x+3)(-x³+x-1)
4x²-1/3x²-x·9x³-x/2x^4-x³计算 急