Question

3)

Which numerical expression equals − 1?
A) − 1(1− 1)
B) − (− 1)(− 1)
C) (− 1) + 1 − 1 (− 1)
D) − (− 1) − (− 1)(− 1)

Answer 1

Answer: b

i just wrote it down on paper and used a calculator to reassure.

Answer 2

the correct answer is B