Question

a+8/a^2:a+8/a^2-a если a=-0.8

Answer 1

(a+8)/a² : (a+8)/a(a-1)=(a+8)/a² *a(a-1)/(a+8)=(a-1)/a=(-0,8-1)/(-0,8)=
=18/8=9/4=2,25