Question 39877
On a number line, make dotted points at 2 and at 5.  These are your "critical" points.
Now we test points in each of the three intervals to see if those values (and that entire region) make the inequality
(x-2)(x-5)<0
true.
So try x = 1.  Does it make the inequality true? No.
Now try x = 3. Now is it true?  Yes.
Now try x = 6.  Now is it true?  No.
Therefore shade in the region between 2 and 5, and state your answer as
2 < x < 5