<p>You might want to read this:</p>
<p>[MIT</a> Admissions | Blog Entry: “What’s the big deal about 40^2?”](<a href=“http://www.mitadmissions.org/topics/apply/standardized_test_requirements/whats_the_big_deal_about_402.shtml]MIT”>http://www.mitadmissions.org/topics/apply/standardized_test_requirements/whats_the_big_deal_about_402.shtml)</p>