Answer:
128.
Step-by-step explanation:
did all angles to find out x = 8. makes only sense. So exterior angle is 16x8 which is 128. if their is more to question whoops lol. if not ur welcome. pls rate if correct or not.
-2x(4x² - 5x + 3) Distribute/multiply -2x into (4x² - 5x + 3)
(4x²)(-2x) - (5x)(-2x) + (3)(-2x)
-8x³ + 10x² - 6x
Your answer is the 3rd option