(x-1)/﹙x²+3x+2﹚- 6/﹙x²-x-2﹚ -﹙x-10﹚/﹙x²-4﹚
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 03:17:42
![(x-1)/﹙x²+3x+2﹚- 6/﹙x²-x-2﹚ -﹙x-10﹚/﹙x²-4﹚](/uploads/image/z/702329-41-9.jpg?t=%EF%BC%88x-1%EF%BC%89%2F%EF%B9%99x%26%23178%3B%2B3x%2B2%EF%B9%9A-+6%2F%EF%B9%99x%26%23178%3B-x-2%EF%B9%9A+-%EF%B9%99x-10%EF%B9%9A%2F%EF%B9%99x%26%23178%3B-4%EF%B9%9A)
(x-1)/﹙x²+3x+2﹚- 6/﹙x²-x-2﹚ -﹙x-10﹚/﹙x²-4﹚
(x-1)/﹙x²+3x+2﹚- 6/﹙x²-x-2﹚ -﹙x-10﹚/﹙x²-4﹚
(x-1)/﹙x²+3x+2﹚- 6/﹙x²-x-2﹚ -﹙x-10﹚/﹙x²-4﹚
=(x-1)/(x+2)(x+1)-6/(x-2)(x+1)-(x-10)/(x+2)(x-2)
=[(x+1)(x-2)-6(x+2)-(x-10)(x+1)]/ (x+2)(x+1)(x-2)
=(x²-x-2-6x-12-x²+9x+10)/(x+2)(x+1)(x-2)
=(2x-4)/(x+2)(x+1)(x-2)
=2/(x+2)(x+1)