When calculating the expression 5 (-1) (4) (-1), we follow the order of operations, which is parentheses, exponents, multiplication and division (from left to right), and finally addition and subtraction (from left to right).
First, we deal with the multiplication inside the parentheses: (-1) (4) = -4.
Now we have the expression 5 (-4) (-1).
Next, we multiply: 5(-4)(-1) = -20(-1).
Lastly, we multiply: -20(-1) = 20.
Therefore, 5 (-1) (4) (-1) equals 20.
Evaluate 5 (-1) (4) (-1)
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