hesifamjay hesifamjay

28-11-2017
Mathematics

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Which expression is prime? A) x2 - 4x + 3 B) x2 - 6x + 9 C) 3x2 + 5x - 2 D) 6x2 - 7x + 18

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eojnhoduihfpionf eojnhoduihfpionf

28-11-2017

The correct answer would be D.

A can be factored to (x - 1) (x - 3)
B can be factored to (x - 3)^2
C can be factored to (3x - 1) (x + 2)
D cannot be factored.

Hope this helps :)

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cgracec cgracec

02-10-2018

D is the correct answer

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