问题描述: 5x-3的平方等于x+1的平方解方程 1个回答 分类:数学 2014-11-21 问题解答: 我来补答 (5x - 3)^2 = (x + 1)^25x - 3 = ± (x + 1)5x - 3 = x + 14x = 4x = 1 ;5x - 3 = - x - 16x = 2x = 2/3 .即:x1 = 1x2 = 2/3 展开全文阅读