For instance this is the problem I'm working on: h(x)=x2 −4
I don't understand how to solve it or what my answer should be and why. I've tried watching videos and every time I think I have a grasp of it I still get it wrong.
Edit: It took me a long time but I finally made sense of it and got past the section I was working on at Khan Academy! Thank for all your help guys!
P.S. Sorry if this is the wrong sub for this I just really need help.
Edit: the 2 was supposed to be superscript.