Hi OverlyFrustrated, this seems to be what you are required to do.

From here on you can expand using the rules of algebra and fractions and you'll find out the simplified form. The fact that you are asking about multiplying -1/16 with (x-1), and then saying that -1/6 is negative one sixth, suggests to me that you are unsure about the basics of fractions. For example

Multiplying fractions works like this

In your case you have

Finally, the way to write math in this forum is to write [..TEX..] before the math expression and [../TEX..] after the math (remove the dots). Fractions are written as \frac{}{}, for example, \frac{x-1}{16}