How do you combine like terms in #(- 3x ^ { 2} + 8) - ( - 9x ^ { 2} - 5)#?

Question

301 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-03-09T02:18:32

See the entire solution process below:

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

#-3x^2 + 8 + 9x^2 + 5#

Next, group like terms:

#-3x^2 + 9x^2 + 8 + 5#

Now, combine like terms:

#(-3 + 9)x^2 + (8 + 5)#

#6x^2 + 13#