How do you find the sum of $2mn + 4n^2$ and $5m^2 - 7mn$ ?

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Answer 1 · 2015-06-04T17:36:33

Finding the sum implies combining the like terms. The like terms are only 2mn and -7mn, which add upto 5mn. Hence the sum would be $4n^2 +5mn+ 5m^2$

How do you find the sum of 2mn + 4n^22mn + 4n^2 and 5m^2 - 7mn5m^2 - 7mn?