x的平方减一,比上x平方减三x加2,求间断点(^2-1/x^2-3)+2求间断点

Question

x的平方减一,比上x平方减三x加2,求间断点 (^2-1/x^2-3)+2 求间断点

Answer 1

(^2-1/x^2-3x+2
=(x+1)(x-1)/(x-2)(x-1)
=(x+1)/(x-2)
断点 是 x=2