cassielewisjones
cassielewisjones cassielewisjones
  • 09-02-2020
  • Mathematics
contestada

why does the - turn into a + in this answer

why does the turn into a in this answer class=

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jimrgrant1 jimrgrant1
  • 09-02-2020

Answer:

see explanation

Step-by-step explanation:

Remember the rules for multiplying

(+ ) × ( + ) = +

( + ) × ( - ) OR ( - ) × ( + ) = -

( - ) × ( - ) = +

Thus

- 2(- 2 ) = - 2 × - 2 = + 4

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Blemine
Blemine Blemine
  • 09-02-2020

Well its simple.

You see , whenever you multiply a negative number with another negative number , the product is a positive number. here -2 is multiplied with -2 , so we get a product of +4 or simply 4.

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