计算 (a²+7a+10)/(a+2)²乘以(a²-4)/(a²-4a+4)除以(a+5)/(a-2)

问题描述:

计算 (a²+7a+10)/(a+2)²乘以(a²-4)/(a²-4a+4)除以(a+5)/(a-2)