What is A4 B4?
(d) a4 – b4 = (a² + b²) (a² – b²) = (a – b) (a³ + a²b + ab² + b³) Special Factors. (a) (a + b + c) (bc + ca + ab) – abc = (b + c) (c + a) (a + b) (b) (a + b + c)³ – a³ – b³ – c³ = 3 (a + b) (b + c) (c + a) (c) a³ + b³ + c³ – 3abc = (a + b + c) (a² + b² + c² – ab – bc – ca) ➢ If a³ + b³ + c³ = 3abc.S...