MathDB
Roots of Quadratic

Source:

February 11, 2009
quadratics

Problem Statement

If r r and s s are the roots of x^2\minus{}px\plus{}q\equal{}0, then r^2\plus{}s^2 equals: (A)\ p^2\plus{}2q \qquad (B)\ p^2\minus{}2q \qquad (C)\ p^2\plus{}q^2 \qquad (D)\ p^2\minus{}q^2 \qquad (E)\ p^2