Question 103083
First, get the equation into standard form: x^2 - 9x - 10 = 0.

Second, think about what factors you could have that would result in -10 and -9.

Well, 10 = 2*5 or 1*10.  Subtracting 1 from 10 gives 9, so let's plug that into a couple of factors to see if that works:

(x - 10)(x + 1) = x^2 + x - 10x - 10 = x^2 - 9x - 10. 

Answer.