lobster lobster 29-10-2015 Mathematics contestada This is ur problem sis u got this Which of the following is equivalent to 16a2 – 49 A. (4a – 7) (4a – 7) B. (4a + 7) (4a – 7) C. (7 – 4a) (7 – 4a) D. (7 + 4a) (7 – 4a)