Question

Factorise: p4 - 81q4

Answer 1

Answer:

By identity x^2 - y^2 = (x+y)(x-y)

p^4 - 81q^4 = (p^2+9q^2) (p^2 - 9q^2)

= (p^2+9q^2) (p -3q) (p+3q).

✨Hope it will help you.✨

Answer 2

Answer:

(p²+9q²) (p-3q) (p+3q)

Step-by-step explanation:

p⁴-81q⁴

In this question we use identity x²-y²= (x+y) (x-y)

p⁴-81q⁴= (p²+9q²) (p²-9q²)

= (p²+9q²) (p-3q) (p+3q)