paidlukkha wrote:

If x is a negative integer, which of the following expressions has the LEAST value?

A \(x^{2} - 0.50\)

B \(x^{2} - 0.51\)

C \(x^{3} - 0.502\)

D \(x^{3} - 0.511\)

E \(x^{4} - 0.512\)

Let x =

-1, so we get....

A \((

-1)^{2} - 0.50\) = 1 - 0.50

B \((

-1)^{2} - 0.51\) = 1 - 0.51

C \((

-1)^{3} - 0.502\) = -1 - 0.502

D \((

-1)^{3} - 0.511\) = -1 - 0.511

E \((

-1)^{4} - 0.512\) = 1 - 0.512

A, B and E will result in POSITIVE values

C and D will result in NEGATIVE values

Eliminate A, B and E

Answer: D

Cheers,

Brent

_________________

Test confidently with gmatprepnow.com