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Question

Add : 3mn,-5mn,8mn,-4mn


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Solution

To add : 3mn,-5mn,8mn,-4mn

Answer

On combining the like terms and adding them ,we get

=3mn+(-5mn)+8mn+(-4mn)=3mn5mn+8mn4mn=mn(35+84)=mn(119)=mn(2)=2mn

Hence, the addition of 3mn,-5mn,8mn,-4mn is 2mn.


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