mf0datazz mf0datazz 03-02-2017 Mathematics contestada Find (3a2 - 2a + 4) - (a2 - 3a + 7) . A. 2a^2 + a - 3 B. 2a^2 - 5a + 11 C. 4a^2 - 5a + 11 D. 4a^2 + a - 3