2x²+2√3x-15
已知,多项式(2ax²-x²+3x+2)-(5x²-4x²+3x)值与x无关,求
2.(2X²-3X+1)²-22X²+33X-1
多项式(2mx²-x²+3x+1)-(15x²-4x²+3x)不含X²
4x²-[2x-(x²-2x+3)-2(x²-3x)] 计算
1.(3x²+2x-8)²-(x²-2x-8)²
已知多项式3-2x²-5x+3x²+3x-7-x²
1、(3x²-2x²+5x-2)-( )=4x³-x²+5
3y/2x+2y+2xy/x²+xy 2x/x²-64y²-1/x-8y (1/a+1/b
分解因式:x²-3xy+2y²+x-2
计算:3x²-[7x-(4x-3)-2x²]
化简:1.2x²-y²+(2y²-3x²)-(2y²+x²)
(3x+2y)(9x²-6xy+4y²﹚