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Whenever you multiply a negative number by a positive number, you get a negative number. If you multiply two negative numbers together, you get a positive number.
Therefore...
3 x 5 = 15
-3 x 5 = -15
-3 x -5 = 15
The two numbers that add to get negative 2 but multiply to get negative 5 are -1 and 5. When you add -1 and 5, you get -1 + 5 = 4. And when you multiply -1 and 5, you get -1 * 5 = -5. Therefore, -1 and 5 satisfy the conditions provided.
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Negative 3 is greater than negative 5
If you have a list of numbers, some positive some negative, and want to multiply them together, first just multiply them without regard to the sign. Then if the number of negatives is odd put a negative sign in front of the answer while if it is even don't do anything. So, for example, (-3)*(-4)*(2)*(-5) then 3*4*2*5 = 120 there are three negative numbers (odd) so the answer is -120 or (3)*(-4)*(2)*(-5) again 3*4*2*5 = 120 there are two negative numbers (even) so do nothing: the answer is 120
Well, let's paint a happy little math problem here. When you multiply a negative number by another negative number, like -3 times -5, it turns into a positive number. So, -3 times -5 equals positive 15. Isn't that just a lovely little math fact to brighten your day?