SOLVED! Thanks to u/rhodiumtoad!

Here's the assignment I'm trying to solve:

Prove that these equals are correct!

a) -1 - (-1) * (-1) / (-1) = 0
b) -1² - (-1)² * (-1) / (-1) = -2

Here are my calculations:

a) -1-(-1) * (-1) / (-1) = 0
-1 + 1 * 1 = 0
-1 + 1 = 0

First attempt!

b) -1² - (-1)² * (-1) / (-1) = -2
1 - 1 * 1 =/= -2

Second attempt!
b) -1² - (-1)² * (-1) / (-1) = -2

(-1)(-1) - (-1)(-1) * (-1) / (-1) = -2

1 - 1 * 1 =/= -2

If someone could explain what I'm doing wrong, I would appreciate it.

Third attempt - Solution!

b) -1² - (-1)² * (-1) / (-1) = -2

-(1 * 1) - (-1)(-1) * (-1) / (-1) = -2

-1 - 1 * 1 = -2

-1 -1 = -2