Quantcast
Channel: GMAT Club Forum - Forums > Reading Comprehension (RC)
Viewing all articles
Browse latest Browse all 291973

Problem Solving (PS) | Re: If x is an even integer and x^2 + 6 > 22, which of the following inequ

$
0
0
Bunuel wrote:

If x is an even integer and x^2 + 6 > 22, which of the following inequalities must be true?


A. x^4 > 231
B. x^3 > 64
C. x^3 > 8
D. x^2 > 64
E. x^2 = 16


We can simplify the given inequality:

x^2 + 6 > 22

x^2 > 16

Squaring both sides, we have:

x^4 > 256

We see that x must be greater than 4 or less than -4. However, we are given that x is an even integer, and so we know that x is greater than or equal to 6, or x is less than or equal to -6.

Since x^4 > 256, and
...

Viewing all articles
Browse latest Browse all 291973

Latest Images

Trending Articles



Latest Images

<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>