【(x+1/2x-2)-(6/x²-1)-(x+3/2x+2)】·(4x²-4/3)
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
(x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3
(x-1)^3(x+1)(x-2)/(x+4)
(x+1)(x+2)(x+3)(x+4)+1
先化简再求值:(x+2/x²-2x - x-1/x²-4x+4)÷ x-4/x,其中x=3/2
化简{x²-2x分之x+2-x²-4x+4x分之x-1}除以X分之(x-1)(X-4)乘以(2-x)
计算 ∫(x^4-2x^3+x^2+1)/x(x-1)² dx
[(x+2)/(x²+2x)-(x-1)/(x²-4x+4)]÷(x-4)/x
3X+(X+2)+(X+1)*(X-1)=4*(X²+8)
(x+2/x+1)-(x+4/x+3)-(x+3/x+2)+(x+5/x+4)
9x+6x²-3(x-2/3x²),其中x=-2 1/4(-4x²+2x-8)-(1/2x