Determine the correct answer for the following exercise:
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Determine the correct answer for the following exercise:
Let's remember the rule:
Therefore, the sign of the exercise result will be positive:
What will be the sign of the result of the next exercise?
\( (-2)\cdot(-4)= \)
Think of it as "opposite of opposite"! When you multiply by -1, you flip the sign. Multiplying by -4 means flipping the sign 4 times. Since -2 flipped 4 times brings you back to positive, the result is +8.
Use this simple pattern:
Just like in real life: "same attracts, different repels!"
Count the negative signs! An even number of negatives gives a positive result, an odd number gives negative. For example: has 3 negatives (odd), so the result is negative.
Not really! The parentheses in (-2) just make it clear that the negative sign belongs to the 2. Both represent the same number: negative two.
Ask yourself: "Am I multiplying two numbers with the same sign?" Since both -2 and -4 are negative (same sign), your answer must be positive. Then calculate: , so the final answer is +8.
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