若m是(-4)³的立方根,n是根号25的算术平方跟,求m²+3n的值
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若m是(-4)³的立方根,n是根号25的算术平方跟,求m²+3n的值
若m是(-4)³的立方根,n是根号25的算术平方跟,求m²+3n的值
若m是(-4)³的立方根,n是根号25的算术平方跟,求m²+3n的值
m是(-4)³的立方根
m=-4
n是根号25的算术平方跟,
n=5
m²+3n
=(-4)²+3x5
=16+15
=31