Factorize each of the following expressions:

(a2)2 – [4 (b – c)2]

= [a2 + 4 (b – c)2] [a2 – 4 (b – c)2]


= [a2 + 4 (b – c)2] [(a + 2b – 2c) (a – 2b + 2c)]


41