Factorize:
16x4 + 54x
We know that,
a3 + b3 = (a + b) (a2 – a × b + b2)
Using this formula, we get
= 2x (8x3 + 27)
= 2x [(2x)3 + (3)3]
= 2x (2x + 3) [(2x)2 – 2x(3) + 32]
= 2x (2x + 3) (4x2 – 6x + 9)