Question 29028
Well, good luck on your test tonight, but your first question is missing something!
1) {{{x^2-10x+35}}} = ?

2) {{{(r^2-5r-6)/((r+1))}}} Factor the numerator.
{{{((r+1)(r-5))/((r+1))}}} Cancel the common factor (r+1) and you are left with:
{{{r-5}}}