Question 5517
You are right. 

x(x+2) = 195


It's quadratic, and it factors.
{{{x^2 + 2x - 195= 0}}}


Basically you need two numbers whose product is 195 and whose difference is only 2, so the numbers will be numerically very close together.  Try a number that is near the square root of 195.  It would be somewhere between 13 and 15.  In fact that is IT:  13 and 15!!

(x+15)(x-13)= 0

There are two solutions:
In the first case:
x= -15  
x+2= -13


In the second case:
x= 13
x+2 = 15.


R^2 at SCC