Which pattern does not follow the rule subtract 8, multiply by 2, subtract 8, multiply by 2?

What is the length and width of a 84.5 square foot rug? will mark

Can someone me with this? i’m not sure what to put for my equations.

Multiply and simplify. (x - 4) (x^2 – 5x – 6) i will mark brainliest if your answer is right. show how you got the answer. if your answer is correct but does not show how you got the answer you will not be marked brainliest.