问题描述: 简便计算:2乘以56的平方+8乘以56乘以22+2乘以(44的平方) 1个回答 分类:数学 2014-11-30 问题解答: 我来补答 2乘以56的平方+8乘以56乘以22+2乘以(44的平方)2×56^2+8×56×22+2×44^2=2×56^2+4×56×44+2×44^2=2×(56^2+2×56×44+44^2)=2×(56+44)^2=2×100^2=20000 展开全文阅读