thethrillboys thethrillboys
  • 29-04-2017
  • Mathematics
contestada

Which is a factor of 2a3 - 2a2 - 7a + 7?

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irspow
irspow irspow
  • 29-04-2017
Rearrange slightly so that:

2a^3-7a-2a^2+7, now factor first and second pair of terms....

a(2a^2-7)-1(2a^2-7)

(a-1)(2a^2-7), these are two factors of the original equation...
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ghanami
ghanami ghanami
  • 29-04-2017
hello : 
2a3 - 2a2 - 7a + 7 = 2a²(a-1) -7(a-1) = (a-1)(2a²-7)
Answer Link

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