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58. Column A z = x4 + 4x2 + 4 Column B   0   ... ...

Column A Column B
  0   The smallest value of z
 
(A) Column A is larger
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Math - Problem Set G: Quantitative Comparisons

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Posted: 10/27/2012 14:43
I don't get it... Why is it always greater or equal to 2???
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Posted: 10/27/2012 14:47
Daniela, x^2 + 2 is always greater than or equal to 2 because x^2 is always 0 or greater.
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