X³-3X²+16X+52=0有谁会解这个

3x³ - 6x²y+ 3xy² (16x^4-5x³+3x²-6x)÷(-2x) 化简4x³(-y³)²-3x·(-x)²(-y²)³化简4x³(-y³)²-3x·(-x)²(-y²)³ 化简再求值 4x³（-y³）²-3x×（-x）²（-y²）³滚 1(x²-9)/(x²+2x²+x)*(3x³+9x²)/(x³-3x),其中x=-1/3 解不等式 x³+3x²>2x+6 x³y³-x²y²-xy+1 x³-x²y-xy²+y³(因式分解) x³ -5x²+3x+1因式分解x³ -5x²+3x+1 3x²-x=0,求6x³+7x²-5x+2006 3x²-x=1 6x³+7x²-5x+2006 (x+y)²-（x³+y³)÷（x+y) 先化简再求值：4x³-[-x²+3（x³-1/3x²）],其中x=-3 降幂的题,x³-y³+3x²y-4xy²= 计算 ①[x(x²y²-xy)-y(x²-x³y)]÷3x²y 计算：[x(x²y²-xy)-y(x²-x³y)]÷3x²y [x(x²y²-xy)-y(x²-x³y)]÷3x²y 化简求值(x²-4／x²-x-1)²÷(x³-3x²+2x／x³-1)²（x／x+2)³其中x=