Respuesta :

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