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20 October, 07:05

Which of the following expressions are equivalent to this expression:

-1 (0) = ?

-1[4 + (-4) ]

-1[4 + (4) ]

1 + [4 + (-4) ]

-1[-4 + (-4) ]

+1
Answers (2)
  1. 20 October, 07:15
    0
    A: - 1[4 + (-4) ]
  2. 20 October, 07:22
    0
    The original expression is equal to 0 because anything multiplied by 0 is equal to 0. Solve inside the brackets for the possible answer choices to find what will equal 0.

    Start with the first expression. Add 4 and negative 4 will become 0, and - 1 times 0 is equal to 0. Let's solve for the others just to be sure.

    In the second expression, solving inside the brackets gives you 8. - 1 times 8 is equal to - 8.

    Adding 4 and negative 4 in the third expression leaves you with 0. But, 1 + 0 is equal to 1.

    Adding negative 4 and negative 4 gives you the answer of - 8, and - 1 times - 8 is equal to 8.

    Your answer is the first expression, or A.
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