Name: Dylan Kirkwood Who is asking: Other Level: Secondary
Question:
Lets look at the problem the other way arount first. Suppose Knowing the factors helps to graph the equation since you can see immediately that when x = 2, y = 0 and when x = 3, y = 0. Thus you know two points on the graph, (2,0) and (3,0).
There is a theorem, called the Factor Theorem which says that this process works the other way around. That is if you graph
and realize that (2,0) and (3,0) are points on the graph then you can conclude that (x  2) and (x + 3) are factors of x^{2}  x  6. This Factor Theorem is true for more than quadratics, it says that: Penny
