Help fast plz jdkdkfkgkgj
1 answer:
Answer:
The last one, (-2/5)(-8/9)(1/3)(2/7)
Step-by-step explanation:
There are some laws that are ALWAYS followed to determine if a product is positive or negative. For example -
(-)(+) = (-)
(-)(-)= (+)
(-)(-)(-)= (-)
Memorizing these rules will be beneficial and help you to do these problems mentally in a matter of seconds. Hoped this helped!
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