数学题[(x^2+x-12)/(2-x-x^2)]^2*[(x^2-3x+2)/(x^2+5x+4)]^2/[(x^2-5x+6)_数学解答

数学题[(x^2+x-12)/(2-x-x^2)]^2*[(x^2-3x+2)/(x^2+5x+4)]^2/[(x^2-5x+6)/(x^2+3x+2)]^2

人气：232 ℃　时间：2019-08-20 12:10:27

解答

[(x^2+x-12)/(2-x-x^2)]^2*[(x^2-3x+2)/(x^2+5x+4)]^2/[(x^2-5x+6)/(x^2+3x+2)]^2=[(x-3)(x+4)/-(x-2)(x+1)]^2*[(x-2)(x-1)/(x+1)(x+4)]^2/[(x-2)(x-3)/(x+1)(x+2)]^2={[(x-3)(x+4)/(x-2)(x+1)*[(x-2)(x-1)/(x+1)(x+...