factorise top and bottom, cancel common factor.

(x + 3)(x - 2)
----------------------------
(x - 2)(x^2 + 2x + 5)

>>136463
umm i think the bottom factor is wrong anon if its -2 and +5 wont the end be -10

>>136469
You're right. My bad. It's (x^2 + 2x - 4).

>>136475
whoa , huge thanks anon

>>136477
No problem. For future reference, that type of factoring is called the difference of cubes.