I'm having trouble factoring expressions that aren't monic. I can do things like
x2-9x+8, but problems like 12x2+5x-3 have me stumped.

I also have a question about factoring out common factors. In a problem like
x2-18x+81, wouldn't you divide by 9? But what happens to the x2, is it x2/9?

Answered by Penny Nom.