Prodotto di una somma di monomi per la loro differenza n°2

Prof. Mauro La Barbera

(5a + 3b)(5a – 3b) =25a² – 9b²
(11a + 4b)(11a – 4b) =121a² – 16b²
(8a – 3b)(8a + 3b) =64a² – 9b²
(a – 15b)(a + 15b) =a² – 225b²
(5a + b)(5a – b) =25a² – b²
(10a – 6b)(10a + 6b) =100a² – 36b²
(a – 7b)(a + 7b) =a² – 49b²
(20a – b)(20a + b) =400a² – b²
(2a – 13b)(2a + 13b) =4a² – 169b²
(100a – b)(100a + b) =10000a² – b²
(15a + 9b)(15a – 9b) =225a² – 81b²
(3a + 14b)(3a – 14b) =9a² – 196b²
(0,5a + 0,2b)(0,5a – 0,2b) =0,25a² – 0,04b²
(ab + 3c)(ab – 3c) =a²b² – 9c²
(2ab – cd)(2ab + cd) =4a²b² – c²d²