Answer:
None of the above, the correct answer should be 8x² - 34x - 9
Step-by-step explanation:
Use FOIL, 2x*4x+2x-9x*4x-9
Calculate the product, 8x²+2x-9x*4x-9
Calculate the product, 8x²+2x-36x-9
Connect like terms, 8x²-34x-9
Final answer, 8x²-34x-9
