Question

一道数学的分式计算题目,帮我,【a的平方-4a+4分之（a+1）（a+2）】除以a-2分之a,救命的啊

Answer 1

[(a+1)(a+2)/(a^2-4a+4)]/[a/(a-2)]

=[(a+1)(a+2)/(a-2)^2]/[a/(a-2)]