alexabrandon44891 alexabrandon44891 20-03-2024 Mathematics contestada Add 5x³ - 3x + 1 and − x² + 8x – 13. Select one: A. 9x - 12 B. 4x³ + 5x - 12 C. 5x³x² - 11x + 14 D. 5x³ - x² + 5x - 12