Question 247554
{{{(3n^7-7n^4-14)-(-7n^7-18n^4+8)}}} Start with the given expression.



{{{3n^7-7n^4-14+7n^7+18n^4-8}}} Distribute



{{{(3n^7+7n^7)+(-7n^4+18n^4)+(-14-8)}}} Group like terms.



{{{10n^7+11n^4-22}}} Combine like terms.



So {{{(3n^7-7n^4-14)-(-7n^7-18n^4+8)=10n^7+11n^4-22}}}