(3x+1)²-(2x-1)²=(x-1)(5x+2)-24
(x²-5x+6分之x²-3x+2)²/(x²-2x-3分之x-1)²
y=(x²+1)²/[(3x²+2)(2x²+3)],求最小值
计算:3x²-[5x-(1/2x-3)+2x²]
已知关于x的多项式(2mx²-x²+3x+1)-(5x²-4y²+3x)不含x&
计算 2(x²-x+1)-(-2x+3x²)+(1-x)
计算题:3x(x²-3x+2)-x²(3x-1)
(1)(x²-2x)²+2(x²-2x)+1
(x²-2x)²+2x²-4x+1
已知:多项式(2mx²-x²+3x-1)-(5x²-4y²+3x²)不
(3x+1)²-(2x-1)²=(x-1)(5x+2)-24
计算:[(x²-2x+1)/(x²-1)]÷[(x-1)(x²+x)]-x
F(x)=3x²+2x-1