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06-10-2017
Mathematics

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How do I solve this problem of factoring trinomials

How do I solve this problem of factoring trinomials class=

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06-10-2017

subtract 12 on both sides
n^2 + 4n - 12 = 0
factor the -12
to find numbers that add to make 4.
-12 = 6 * -2
6 + -2 = 4

(x + 6)(x - 2) = 0

then x = -6 or 2

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