Trying to understand how to work to work this problem for a difference quotient. The problem was this:
After simplifying, I am left with:
But the answer to the problem was:
I guess I dont understand why the 1 was placed above
. I know that when I cancelled out the common factor "h" I should have done something with the radicals but Im not quite sure what and I guess I dont understand how this part was worked. Any help is appreciated.