(2/3-3/4-1/12)X(-24)
(x-1)^3(x+1)(x-2)/(x+4)
(x+1)(x+2)(x+3)(x+4)+1
(x+2/x+1)-(x+4/x+3)-(x+3/x+2)+(x+5/x+4)
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
用换元法解方程 1、x²-x-12/x²-x=4 2、(3x²/x+1)-(x+1/x
4(x+3)=2x+2 7(x-1)=2x+3 4x+20=6x-30 4x-12=2x 2x-3=x+7 3x-4=2
1/(x+1)(x+2) + 1/(x+2)(x+3) + 1/(x+3)(x+4) + ...+ 1/(x+2005)
x^2-1/x^2+4x+4÷(x+1)×x^2+3x+2/x-1计算
(x+1)(x+2)(x+3)(x+4)-24因式分解咋做啊.
(x-1)(x-2)(x-3)(x-4)-24 (换元法)
(3x^2+9x+7)/(x+1)-(2x^2-4x+3)/(x-1)-(x^3+x+1)/(x^2-1)是不是错了?