You can put this solution on YOUR website! The first step in solving for x in this equation, is to expand the factoring on the left side of the equation:
(2x + 1)(x + 5) =
=
=
Next we want to set this equation equal to 0. To do this, add 3 to both sides, giving us
Now, we have a quadratic equation. Because this equation cannot be factored, we will use the quadratic formula to solve for x.
The quadratic formula:
In our equation, a = 2, b = 11, and c = 8. We will plug these numbers into the quadratic formula: