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GMAT prep problem

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by JGaynor » Sun Apr 04, 2010 1:39 pm
Hey everyone,

Basically every gmatprep question is listed on the forum, but I cant seem to find this one...so please direct me to the link if I am wrong..

If cubed root x-b = c^6, then x= ?

a) c^2 + b
b) c^6 + b
c) c^9 + b
d) c^12 + b
e) c^18 + b

Thank you!
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Source: — Problem Solving |

by indiantiger » Sun Apr 04, 2010 2:53 pm
given : (x-b)^1/3 = c^6

it can be written as x-b = c^(6*3)
= >x-b = c^18
x = c^18+b (E)
Whats the OA?
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by JGaynor » Sun Apr 04, 2010 2:55 pm
thank you for the quick reply....simple problem, not sure how I couldnt get that...you were correct, the answer is E
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