Answer asap set up the following subtraction in a vertical format and select the correct answer. take -4 + 3a^2 from 7a - a ^2 a) -4a^2 - 7a - 4 b) -4a^2 - 7a + 4 c) -4a^2 + 7a + 4 d) 4a^2 + 7a + 4