meliyahcorbray meliyahcorbray 14-07-2022 Mathematics contestada 1. Factor 250² - 81b². О (5а - 9ь)(5а + 90) - О (5а - 9b)(5а - 9b) О (5а + 9ь)(5а + 9ь) (12.5a-4.5b) (12.5a + 4.5b)
