A root of equation $$({ax}^2+bx+c)$$ (where a, b and c are rational numbers) is 5 +3 3. What is the value of $$({a}^2+b^2+c^2) / (a+b+c) ? $$

A root of equation $$({ax}^2+bx+c)$$ (where a, b and c are rational nu

1.	A root of equation $$({ax}^2+bx+c)$$ (where a, b and c are rational numbers) is 5 +3 3. What is the value of $$({a}^2+b^2+c^2) / (a+b+c) ? $$
A.	35/3
B.	37/3
C.	-105/11
D.	-105/13
Answer» D. -105/13