(2x³-3x²+6)-()=-x³+2x²-6x+15
(2x³-3x²+6)-()=-x³+2x²-6x+15
已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值
先化简,再求值.1.3x³-【x³+(6x²-7x)】-2(x³-3x²
行列式求导 设F(x)=| x x² x³ | | 1 2x 3x² | | 0 3 6x
2x^6×x³-3x^9+5x²×x^7等于多少
3x³-2x*x²
(x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3
x³+2x²-5x-6=0
因式分解 2x³+x²-6x-3
(-x)^6-3x³·3x³-(-2x²)·(-2x²)·(-2x²)
先化简在计算 3x³-【x³+(6x²-7x)】-2(x³-3x²-4
约分下列分式(x-y)/(y-x)³(x²-9)/(6-2x)(x²-1)/(x-x