Question

simplifique as frações:
a)4ad+10ad²/12ad² b)a4+a³-ab³-b4/a²-b²

Answer 1

a) 4ad+10ad^2/12ad^2∴ 2ad(2 +5d)/12ad^2= 2+5d/6d∴ b) a^4+a^3-ab^3-b^4/a^2-b^2∴ a^3(a+1)-b^3(a+1)∴ (a^3-b^3).(a+1)∴ (a-b).(a^2+ab+b^2)+(a+1)/(a+b).(a-b)∴ (a^2+ab +b^2).(a+1)/a+b