计算:(-5m^3n^2)^3÷25m^3n^2·(m^3n^2)

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/15 09:52:07

计算:(-5m^3n^2)^3÷25m^3n^2·(m^3n^2)
计算:(-5m^3n^2)^3÷25m^3n^2·(m^3n^2)

计算:(-5m^3n^2)^3÷25m^3n^2·(m^3n^2)
(-5m^3n^2)^3÷25m^3n^2·(m^3n^2)
=-5^3/25xm^9n^6xm^(-3)n^(-2)xm^3n^2
=-5m^(9-3+3)n^(6-2+2)
=-5m^9n^6

原式=-125m^9n^6÷25m^3n^2×m^3n^2
=-5m^9n^6

[(-5m^3n^2)^3/25m^3n^2](m^3n^2)
= (-1/5)(m^6n^4)(m^3n^2))
=(-1/5)(m^9.n^6)

=-5m^3n^2
把m^3n^2当成一个未知数