engineering recuitment ISRO Scientist Mechanical Mock Test Mathematics Quadratic Equations Location of Roots

If α and β are the roots of the equation x2 - px + q = 0, then \(\sum {{(\alpha ^2 + \beta^2)}} \) is

1
p2 + 2q
2
p + 2q
3
p2 - 2q
4
p - 2q
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