Helping students gain understanding and self-confidence in algebra.
Alzebra wrote:I understand most of Algebra except factoring. I don't understand how "canceling out" really works. Can someone please explain?
Alzebra wrote:THEN, suddenly, it says it says, "3. And so, x to the 4th power - 9y squared = (x squared + 3y)(x squared - 3y). Solved"
WHERE did that come from???