Question

I’m having trouble can y’all help me please

Answer 1

The first and the third one are definitely equal to 0 (can't see the fourth one)

Explanation:

If the part that is between the '()' in the upper half is equal to 0, the whole equation is equal to 0

1) -1 + 1 = 0

2) -1 -1 = -2 (so not equal to 0)

3) -1 - (-1) = -1 + 1 = 0