Question

Help fast plz jdkdkfkgkgj​

Answer 1

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!