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

User Doruk
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2 Answers

4 votes
hello :
2a3 - 2a2 - 7a + 7 = 2a²(a-1) -7(a-1) = (a-1)(2a²-7)
User Tmcw
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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...
User Clarkey
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