Algebra

First, let's combine all like terms. 

By setting up a quadratic, we get $3x^{2}+4x+10$

The descriminant of a quadratic can be written in the form $b^2-4ac$ for quadratcis written in the form $ax^2+bx+c$

Thus, we have

$4^2-4(3)(10)\\ 16-120\\ -104$

So -104 is our answer

Thanks! :)