Cократите дробь: а^4 - b^4 -------------- ab^2 - a^3

Question

Cократите дробь:

а^4 - b^4
--------------
ab^2 - a^3

Answer 1

I hope this helps you

---

Answer 2

(а^2-b^2)(a^2+b^2)
---------------------------
-a (a^2-b^2)

a^2+b^2
- ------------
a