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10-07-2016
Mathematics

contestada

Factor each expression. Show your work.
r2 + 12r + 27

Respuesta :

10-07-2016

We have to find factors of 27 that add up to 12

9 and 3 are factors of 27 (9 x 3 = 27), and they add up to 12 (9 + 3 = 12)

So to factor we do this:

(x + 9)(x + 3)

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