The solution to this expression is not a single number, but rather a polynomial expression of the form x + 3 + 1/(x^2 + 3). This is because the expression cannot be simplified any further.
No, this expression cannot be factored further as it is already in its simplest form.
The domain of this expression is all real numbers except for x = ±√3, as these values would result in a division by zero which is undefined.
There are no real solutions to this equation as the expression (x^3 +1)/(x^2 +3) can never equal zero for any real value of x.
Yes, this expression can be graphed using a graphing calculator or software. The resulting graph would be a cubic curve with a vertical asymptote at x = ±√3.