caitlin12311 caitlin12311 17-02-2017 Mathematics contestada multiply: 3x^4(4x^4 - x^5 + 2) a. 7x^8 - 3x^9 + 6x^4 b. 12x^8 - 3x^9 + 6x^4 c. 12x^4 - x^9 + 6x^4 d. 12x^16 - 3x^20 + 6x^4