xphamjenny9170 xphamjenny9170 08-01-2024 Mathematics contestada Expand and combine like terms. ( (9c² c⁶)(9c² - c⁶) ) a. ( 81c⁸ - 9c¹⁴ ) b. ( 81c⁸ - 81c¹⁴ ) c. ( 81c⁸ + 9c¹⁴ ) d. ( 81c⁸ + 81c¹⁴ )