(x-2)^2 > 9
this inequality holds for two sets of values: x < -1 and x > 5
since we're told that x > 0, we have to go for x> 5 and therefore x > 3
does that help?
PS: I'm curious: if you were able to figure out the first, you should have no problem with the second. just have to follow the same reasoning... how come?
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Source: Beat The GMAT — Data Sufficiency |
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