For all the questions I have done using an iterative formula, the quadratic equation only ever solves to one root, I am not sure is this always the case, or is there a method to find multiple roots? Also, my teacher said that the iterative formula always gives the positive root, is this true?
Also, with solving using an iterative formula, does the starting value of $x$ matter? Will they still converge to the same value?
Please could someone explain simply please, I am fairly new to this concept. Thanks