absolute values

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Source: — Data Sufficiency |

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by Azntycoon » Mon Sep 29, 2008 4:03 am
I'm getting C as my answer. See below:

Stem #1:
There are 2 answers for x to complete the inequality since |x+3| can be either:
i) x+3 = 14, whereby x = 11
ii) x+3 = -14, whereby x = -17
Therefore, Stem 1 is NS

Stem #2:
Few steps involved here:
i) De-simplify the LHS, so you get x^2+4x+4.
ii) Rearrange the equation, and you end up with x^2+4x-165=0
iii) Factor out, and we get (x+15)(x-11). This means that x can either be 11 or -15.
Therefore, Stem 2 is NS

Combining Stem 1 and 2, we see that 11 is a common occurrence in both. Therefore, the answer is C.

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by 4meonly » Mon Sep 29, 2008 8:04 am
Got C by the same logic

What is the source of the question?