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Question

Add: 14x+10y-12xy-13,18-7x-10y+8xy,4xy


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Solution

We have to add :14x+10y-12xy-13,18-7x-10y+8xy,4xy

On combining the like terms and adding them, we get

=14x+10y–12xy–13+(18–7x–10y+8xy)+4xy=14x+10y–12xy–13+18–7x–10y+8xy+4xy=14x–7x+10y–10y–12xy+8xy+4xy–13+18=x(14–7)+y(10–10)+xy(-12+8+4)+(-13+18)=x(7)+y(0)+xy(0)+(5)=7x+5

Hence, On adding 14x+10y-12xy-13,18-7x-10y+8xy,4xy we get 7x+5.


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