ronikgupta
ronikgupta ronikgupta
  • 23-10-2020
  • Mathematics
contestada

Please help with this:

Please help with this class=

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 23-10-2020

9514 1404 393

Answer:

  Positive

Step-by-step explanation:

If thinking in the abstract doesn't work well for you, choose a couple of values that match the description:

  a > 0, choose a = 1

  b < 0, choose b = -1

Now, the product is ...

  -4ab = (-4)(1)(-1) = 4 . . . a positive product

__

The product will be positive when the total number of minus signs of the factors is even. Here, there are 2 minus signs, so the product is positive.

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