展开全部
解:∵已知4、5、6、8需运用加、减、乘、除使等式成立
最终结果等于24
根号4 = 正2或负2 舍去-2 ∴根号4 = 2
∴[4 -(6 - 5)] × 8 = (4 - 1)× 8 = 3 × 8 = 24
[6 - (5 - 根号4)] × 8 = [6 - (5 - 2)] × 8 = (6 - 3)× 8 = 3 × 8 = 24
[5 - (6 - 4)]× 8 = (5 - 2)× 8 = 3 × 8 = 24
最终结果等于24
根号4 = 正2或负2 舍去-2 ∴根号4 = 2
∴[4 -(6 - 5)] × 8 = (4 - 1)× 8 = 3 × 8 = 24
[6 - (5 - 根号4)] × 8 = [6 - (5 - 2)] × 8 = (6 - 3)× 8 = 3 × 8 = 24
[5 - (6 - 4)]× 8 = (5 - 2)× 8 = 3 × 8 = 24
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询