03:17 08/29/2022 IQ 164 Youngjae’s updates () Solving a first-order equation at age 3 and a second-order equation at age 4IQ 164 by WexlerIQ 204 based on Mensa How useful was this post? Click on a star to rate it! Submit Rating Average rating / 5. Vote count: No votes so far! Be the first to rate this post.