Question

Factorise:

8a⁴ + 27a

Answer 1

Given expression: 8a⁴ + 27a

⇒ a2a³ + 3³

We know that,

a³ + b³ = (a + b) (a² – ab + b²)

Hence,

⇒ a(2a + 3) (4a² – 6a + 9)