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Data Sufficiency (DS) | Re: Is x an integer? (1) x^3 = 8 (2) x = 4^(1/2)

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vedha0 wrote:

Bunuel bb EMPOWERgmatRichC

can you please clarify thiscase?

Kanna444 wrote:
x^3 = 8 actually has 3 solutions;

\( x^3 - 8=0\)
\((x-2)(x^2+2x+4)=0\)
1 for the above equation\(x=2\)
other 2 solutions are imaginary\( [-1+i\sqrt{3} ],[-1-i\sqrt{3}]\)

so we cant say x is an interger or imaginary,
can someone pleaseclarify.

Bunuel
EMPOWERgmatRichC


On the GMAT, all numbers are assumed to be real numbers by default.
...

Statistics : Posted by Bunuel • on 26 Apr 2019, 02:16 • Replies 15 • Views 14262



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