Question 453785"How do I write a quadratic equation using -6, and -4 as solutions." Start with solution and work backwards: x = -6 or x = -4 x + 6 = 0 or x + 4 = 0 {added 6 and added 4 to both sides} (x + 6)(x + 4) = 0 {multiplied the two binomials and set equal to 0} x² + 10x + 24 = 0 {used foil method} <a href = "http://www.algebrahouse.com/" target = "_blank">www.algebrahouse.com</a>