化简:a^2+3a+2/a^2+6a+5=()/a+5

问题描述:

化简:a^2+3a+2/a^2+6a+5=()/a+5

a^2+3a+2/a^2+6a+5
=[(a+2)(a+1)]/[(a+1)(a+5)]
=(a+2)/(a+5)

化简:
a^2+3a+2/a^2+6a+5
=(a+2)/(a+5)

a^2+3a+2/a^2+6a+5
=(a+2)(a+1)/(a+1)(a+5)
=(a+2)/(a+5)

(a^2+3a+2)/(a^2+6a+5)
=(a+1)(a+2)/(a+1)(a+5)
=(a+2)/(a+5)