lulbabyjane lulbabyjane 14-12-2022 Mathematics contestada Factor the polynomial completely. 343y3 - 1 Group of answer choices (7y - 1)(49y2 + 1) (7y + 1)(49y2 - 7y + 1) (7y - 1)(49y2 + 7y + 1) (343y - 1)(y2 + 7y + 1)