$$( - 9 + 6 n ^ { 7 } - 7 n ^ { 6 } ) + ( 2 n ^ { 7 } - 9 n ^ { 6 } - 9 )$$
$8n^{7}-16n^{6}-18$
$$-9+8n^{7}-7n^{6}-9n^{6}-9$$
$$-9+8n^{7}-16n^{6}-9$$
$$-18+8n^{7}-16n^{6}$$
Show Solution
Hide Solution
$2\left(4n^{7}-8n^{6}-9\right)$
$$8n^{7}-16n^{6}-18$$
$$2\left(4n^{7}-8n^{6}-9\right)$$
