3x³-4x²+5x-1/x²+3x-1得,要得数!
3x³-4x²+5x-1/x²+3x-1得,要得数!
(x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
4x²-1/3x²-x·9x³-x/2x^4-x³计算 急
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
设x²-x=-1,则3x^4-5x³+8x²-5x+1等于?
(2x²-2x+3)(-x³+x-1)
计算:(3/x)+(x/x²-1)-(4/1-x)
(x+1)/(x²+3x+2)+(x²-2x)/(x²-4)
x(x²-1)+2x²(x+1)-3x(2x-5)计算
有几道题求解,|x²-3x|>4,|x/1+x|>x/1+x