(5的四次方×3³-5³×3²+5²×3)÷15
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/26 01:48:15
![(5的四次方×3³-5³×3²+5²×3)÷15](/uploads/image/z/2708757-45-7.jpg?t=%EF%BC%885%E7%9A%84%E5%9B%9B%E6%AC%A1%E6%96%B9%C3%973%26%23179%3B-5%26%23179%3B%C3%973%26%23178%3B%2B5%26%23178%3B%C3%973%EF%BC%89%C3%B715)
(5的四次方×3³-5³×3²+5²×3)÷15
(5的四次方×3³-5³×3²+5²×3)÷15
(5的四次方×3³-5³×3²+5²×3)÷15
=5的四次方×3³÷15-5³×3²÷15+5²×3÷15
=5³×3²-5²×3+5
=1125-75+5
=1055
(5的四次方×3³-5³×3²+5²×3)÷15
=15×(5³×3²-5²×3+5)÷15
=5³×3²-5²×3+5
=125×9-25×3+5
=1055
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