Question

Factorise:

x⁵ + 1728x²

Answer 1

Given expression: x⁵ + 1728x²

⇒ x²x³ + 12³

We know that,

a³ + b³ = (a + b) (a² – ab + b²)

Hence,

⇒ x²(x + 12) (x² – 12x + 144)