Posted by
**Diana** on
.

Rewrite the middle term as the sumof two terms and then factor completely.

Please show me the formula and how to use it correctly.

12w^2 + 19w + 4

19w can be written as 16w + 3w. Those are the cross product terms when multiplying 4w times 4 and 3w times 1. That is a clue that the polynomial can be factored as

(4w + 1)(3w + 4)