How do you factor #3n^2 - 8n + 4#?
How did I find this?
We are looking for factors in the form
Comparing this with our original quadratic we find:
We might as well pick the first of these, they will ultimately give very similar factorisations.
So we are looking for two negative whole numbers
That only leaves the possibility
We can Split the Middle Term of this expression to factorise it
In this technique, if we have to factorise an expression like
After trying out a few numbers we get