(- 3a 2 ) ( 7a 5 July 8, 2019 16 32 64 128 (- 3a 2 )+( 7a 5 2a 2 3a 1 )-( 7a 2 5a 5a 3a 2 7a 4 3a 5b 2 7a 5b 2 5a 3a 2 7a 7a 2 3a 5 2a 3a 1 a 2 )-( 7a 2 5a 7 Product of 5a 3a 2 7a 4 is 3a 7a x )= 5x 2 3a 4b 2 7a 3b 5 (3a + 7) ^ 2 = 3 2a-7-7(2 1а-0 3)
