FluffyFerret
FluffyFerret
18-06-2017
Mathematics
contestada
How do I factorise t³-3t-2
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Аноним
Аноним
18-06-2017
i think it would stay the same as t^3 cannot be factorised nether can the 3t or the 2 so it would be the same
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Banabanana
Banabanana
18-06-2017
t³ -
3t
- 2 = t
³
- 4t + t
- 2 = t(t²-4) + t - 2 = t(t-2)(t+2) + (t-2) =
= (t-2)(t(t+2)+1) = (t-2)(t²+2t+1) = (t-2)(t+1)²
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