(14x3\5+2\5x14)x2\7

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/05 06:48:15
(14x3\5+2\5x14)x2\7

(14x3\5+2\5x14)x2\7
(14x3\5+2\5x14)x2\7

(14x3\5+2\5x14)x2\7
yf256984,
(14×3/5+2/5×14)×2/7
=14×(3/5+2/5)×2/7
=14×1×2/7
=4