(1-3x)²+(2x-1)²>13(x-1)(x+1)
2(x²-1²)
(1-3x)²+(2x-1)²>13(x-1)(x+1)
化简~(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)
分解因式(2X²-3X+1)²-22X²+33X-1
因式分解:(2x²-3x+1)²-22x²+33x-1
计算:(1).(-2xy²)*(3x²y)²
(x²-5x+6分之x²-3x+2)²/(x²-2x-3分之x-1)²
7/x²+x+3/x²-x=6/x²-1
多项式(2mx²-x²+3x+1)-(15x²-4x²+3x)不含X²
1-x²+2xy-y²
计算 2(x²-x+1)-(-2x+3x²)+(1-x)
计算题:3x(x²-3x+2)-x²(3x-1)