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Anonymous
a2 + 12a + 27 = (a + 3)(a + 9)
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It is: 12a+2 when simplified
-24
As written, that's 12a + 18 which factors to 6(2a + 3) a^2 + 11a + 18 = (a + 9)(a + 2)
(12a+9b)(12a-9b)
a=12