shdjejejej shdjejejej 14-12-2022 Mathematics contestada 5. Which of the following expressions is in standard form? A. -7x³8x² + 9x + 10 B. 2x + x² C. 3x³ + 2x4 D. 10+ 9x - 8x²-7x³ E. x³ + 2x - 3x²