Question 712243
The graph doesn't work (something about a log in error, but I don't know)


Anyways, you can factor x^2 + x - 30 to get (x - 5)(x + 6)


So 


x^2 + x - 30 = 0


is the same as 


(x - 5)(x + 6) = 0


which breaks up into


x - 5 = 0 or x + 6 = 0


Solve each equation for x to get your two roots