Срочно,помогите!!!!!!!!!!!!!!!!!!!!!​

Question

Срочно,помогите!!!!!!!!!!!!!!!!!!!!!​

---

Answer 1

4а^2-а-16а+4+4а^2+а+16а+4/а × 1/а^2+1

8(а^2+1)/а × 1/а^2+1

8/5^-1=40

....................