20stringerkar 20stringerkar

14-03-2017
Mathematics

contestada

Which expression is prime? A) x2 - 9 B) 1 - 9x2 C) 2a2 - 25 D) 4x2 - 9

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Zombie2113 Zombie2113

14-03-2017

I think the right anser would be (a)

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lildfg16 lildfg16

05-02-2019

Answer:

its c 2a2-25

Step-by-step explanation:

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