Factor the trinomial completely.
To begin, the first two terms and the last two terms are grouped. This can be done using parentheses.
In the first pair, factor out the GCF. Here, the GCF is For the second pair, the GCF is
If the polynomial is factorable, this should lead to a sum of two terms with a common factor. In this case, that factor is This means that can be written as
Solve the equation by factoring.