Question

Evaluate. ( − 1 ) 3 =

Answer 1

-1 +3 =2

Explanation:

There is an invisible postive one in front of the bracket while 3 is not in a bracket so we do not multiply it

• +1(-1) 3
• +1 × -1 +3

Remember

• -1 × -1 = +1
• -1 × +1 = -1
• +1 × -1 = -1
• +1 × +1 = +1

Resuming

• -1 +3
• +3 -1

Answer = +2