64a3 - 27b3 - 144a2* + 108ab264a3 - 27b3 - 144a2b + 108ab2= (4a)3 - (3b)3 - 3(4a)(3b) (4a - 3b)= (4a - 3b)3 | Using Identity VII= (4a - 3b)(4a - 3b)(4a - 3b)
Factorise each of the following: