❤💘唬克熊WHO K BEAR 分享 Jul 27, 2017 03:47AM << Brain Exercise >>Quiz:1x2x3x4 +1 = 5^22x3x4x5 +1 = 11^23x4x5x6 +1 = 19^2....2014x2015x2016x2017 +1 = X^2Ans: X =??