How do you simplify #(5n ^ { 2} - 3n + 2) + ( - n + 2n ^ { 2} - 4)#?

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Answer 1 · 2017-02-05T02:43:11

See entire simplification process below:

First, expand the terms in parenthesis. Be careful to handle the signs of individual terms correctly:

#5n^2 - 3n + 2 - n - 2n^2 - 4#

Next, group like terms:

#5n^2 + 2n^2 - 3n - n + 2 - 4#

Now, combine like terms:

#(5 + 2)n^2 + (-3 - 1)n - 2#

#7n^2 - 4n - 2#