(2x²-2x+3)(-x³+x-1)
(2x²-2x+3)(-x³+x-1)
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
(1-x/3-x)²/(3-2x-x²/9-x²)³*(x²/x
4x²-1/3x²-x·9x³-x/2x^4-x³计算 急
1.(x²-9)/(x²+2x²+x)*(3x³+9x²)/(x
x-1)(X-2)(x-3)...(x-50)+x(x-2)(X-3)...(X-50)+...+x(x-1)(x-2)
(4x³)²×[x³-x(2x-1)]
因式分解x+3x³+x²-3x-2
2f(x)+x^2f(1/x)=(3x³-x²+4x+3)/(x+1) 2x²f(1/x)
先化解,在求值;(3x/x-1-x/x+1)÷x四次方-4x²/x³-x,其中x=根号2+2
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4