There is no way you could have studied how to find the x-intercept of



For only by a very advanced method the x-intercept is this irrational 
number, which can only be written in exact form as:



which by graphing calculator comes out to be approximately -1.34025083.

However for your second equation





the x intercepts can be found very easily without a graphing calculator:

 

Multiply both sides by (x+3) and the denominator disappears:





Using the zero-factor principle:

x-2=0,   x+2=0
  x=2      x=-2

So you have given an impossible one (without very advanced techniques)
and a very easy one. :)

Edwin