The expression simplifies to (3x^2 + 2x^2) / x^2 = 5x^2 / x^2 = 5. The simplified form is 5.

To simplify this expression, we can combine the two terms in the numerator by adding their coefficients, since they have the same base of x^2. This gives us:

(3x^2 + 2x^2) / (x^2) = (3 + 2) x^2 / x^2 = 5

So the simplified form of the expression is 5.