SOLUTION: (3n^7-7n^4-14)-(-7n^7-18n^4+8) I really need help with this problem I am stuck I have never had a problem this big before.

Algebra ->  Exponents-negative-and-fractional -> SOLUTION: (3n^7-7n^4-14)-(-7n^7-18n^4+8) I really need help with this problem I am stuck I have never had a problem this big before.      Log On


   



Question 247554: (3n^7-7n^4-14)-(-7n^7-18n^4+8) I really need help with this problem I am stuck I have never had a problem this big before.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
%283n%5E7-7n%5E4-14%29-%28-7n%5E7-18n%5E4%2B8%29 Start with the given expression.


3n%5E7-7n%5E4-14%2B7n%5E7%2B18n%5E4-8 Distribute


%283n%5E7%2B7n%5E7%29%2B%28-7n%5E4%2B18n%5E4%29%2B%28-14-8%29 Group like terms.


10n%5E7%2B11n%5E4-22 Combine like terms.


So %283n%5E7-7n%5E4-14%29-%28-7n%5E7-18n%5E4%2B8%29=10n%5E7%2B11n%5E4-22