Question

Simplify:

(2x - 9) (4x + 1)
A. 8x² – 344-9
B. 8x2 + 34x – 9
C. 8x2 – 38x -9
D. 8x2 + 38x - 9

Answer 1

None of the above, the correct answer should be 8x² - 34x - 9

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