B2reenJnisweeta B2reenJnisweeta

24-11-2016
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Factor completely x2- 4x - 12

prime
(x - 2)(x - 6)
(x + 2)(x - 6)
(x - 2)(x + 6)
the only reason i am confused is because of the word prime... ?

Respuesta :

andriansp andriansp

27-11-2016

x^2 - 4x - 12 = 0

If multiplied it became -12

If added it became -4

the only number that made sense is = -6 and 2

So the answer would be :
(x+2) (x-6)

Hope this helps

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