The word translated as "formed" has specific meaning in Hebrew, having its root in how a potter makes pots.
Now, a potter doesn't throw down a lump of clay and have it instantly become what he wants. He forms and shapes it over time, through intermediate shapes until it takes the shape he wants.
I don't know how the ancient Hebrews thought, but to me, this implies that God did not create man in an instant, but shaped him over time. In short, by my reading, while it does not define the process in detail, the Bible specifically states that man is the result of an evolutionary process.