3 n ^ 2 + 21 n =
3 n * n + 3 n * 7 =
3 n ( n + 7 )
6 n ^ 2 + 18 n =
6 n * n + 6 n * 3 =
6 n ( n + 3 )
Factor each completely;
3n^2+21n
6n^2+18n
not quite sure how to factor completely on problems with that format.
1 answer
1 answer