関連ワード:  is the difference of two negative integers always negative    is the difference of two negative numbers always negative    the difference of two negative integers is always negative true or false    the difference of two negative numbers is always negative true or false    the difference of two negative numbers is always negative counterexample    is the sum of two negative integers always negative    is the sum of two negative numbers always negative    is the sum of two negative integers positive or negative    is the product of two negative numbers always negative    is the product of two negative integers positive or negative  
結果 : is the difference of two negative integers always negative