123^2+234^2+345^2+2*123*234-2*123*345-2*234*345

123^2+234^2+345^2+2*123*234-2*123*345-2*234*345 excel 中,123,345,123,234,345求和,要现在单元格中显示123*2+345*2+234=1170, 123+234+345+456=? 123*234*345*456= 求123的2次方+234的2次方+345的2次方除以11的余数. 求123的2次方+234的2次方+345的2次方除以11的余数 123+234+345+456+567+678=? 123+234+345+456+567+678 123+234+345+456+567+678速算 123+234+345+456+567=? 123+234+345+456+567= excel中a列是123,234,345,456分6列分别显示为1,2,3,4,5,6