Question

How do you combine like terms in `(1.1m^3n^2-6.6mn) + (1.5m^2n^3+ 2.8mn)`?

Answer 1

See a solution process below:

Explanation:

First, remove all of the terms from parenthesis. Be careful to handle the signs of each individual term correctly:

`1.1m^3n^2 - 6.6mn + 1.5m^2n^3 + 2.8mn`

Next, group like terms:

`1.1m^3n^2 + 1.5m^2n^3 - 6.6mn + 2.8mn`

Now, combine like terms:

`1.1m^3n^2 + 1.5m^2n^3 + (-6.6 + 2.8)mn`

`1.1m^3n^2 + 1.5m^2n^3 + (-3.8)mn`

`1.1m^3n^2 + 1.5m^2n^3 - 3.8mn`