Let r and s be the roots of \(3x^2+4x-12=0\) . Find \(r^2+s^2\) .

**Notice: This problem is similar to a previously asked question (****https://web2.0calc.com/questions/help-help-asap-please****) but the equations are slightly different. I have already checked so no need to get on my case about it. **

Keihaku Dec 6, 2022