1. The quadratic formula as we know it today was developed over many centuries by mathematicians from various cultures. 2. Mohammad ibn Musa al-Khwarizmi, a Persian mathematician from the 9th century, made significant contributions to algebra, including methods for solving quadratic equations. 3. He wrote a book called "Al-Kitab al-Mukhtasar fi Hisab al-Jabr wal-Muqabala" which laid the foundation for algebra and included systematic solutions to quadratic equations. 4. While he did not write the quadratic formula in the exact modern form, his work was crucial in developing algebraic methods that led to it. 5. Therefore, the quadratic formula is not attributed to a single person but is a result of contributions from many mathematicians, including al-Khwarizmi. 6. His name is indeed associated with the origin of algebra, and he is often called the "father of algebra."