Question

29. What is the factored form of

Answer 1

= (5a²)³ - 4³
you can apply the cubic factorisation rule


(a³ - b³) = (a - b)(a² - ab + b²)

= [5a² - 4][ (5a²)² - 20a² + 16]
= [5a² - 4][25a⁴ - 20a² +16]

I think this is it.
hope it helps.
:)