If a and b are the roots of the equation Px2 - Qx + R = 0, then what is the value of (1/a2) + (1/b2) + (a/b) + (b/a)?

\(\frac{{\left( {{Q^2} - 2R} \right)\left( {2P + R} \right)}}{{{P^2}{R^2}}}\)

\(\frac{{\left( {{Q^2} - 2P} \right)\left( {2R + P} \right)}}{{P{R^2}}}\)

\(\frac{{\left( {{Q^2} - 2PR} \right)\left( {R + P} \right)}}{{P{R^2}}}\)

\(\frac{{\left( {{Q^2} - 2PR} \right)\left( {2R + 2P} \right)}}{{{P^2}{R^2}}}\)

If a and b are the roots of the equation Px2 - Qx + R = 0, then what i

1.	If a and b are the roots of the equation Px2 - Qx + R = 0, then what is the value of (1/a2) + (1/b2) + (a/b) + (b/a)?
A.	\(\frac{{\left( {{Q^2} - 2P} \right)\left( {2R + P} \right)}}{{P{R^2}}}\)
B.	\(\frac{{\left( {{Q^2} - 2PR} \right)\left( {R + P} \right)}}{{P{R^2}}}\)
C.	\(\frac{{\left( {{Q^2} - 2R} \right)\left( {2P + R} \right)}}{{{P^2}{R^2}}}\)
D.	\(\frac{{\left( {{Q^2} - 2PR} \right)\left( {2R + 2P} \right)}}{{{P^2}{R^2}}}\)
Answer» C. \(\frac{{\left( {{Q^2} - 2R} \right)\left( {2P + R} \right)}}{{{P^2}{R^2}}}\)