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Suppose r and s are the solutions of x^2 − 12x + 22 = 0. Find r 2 + s 2

 Mar 27, 2023
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using vieta's formulas, \(r+s=12\) and \(rs=22\). Squaring \(r+s\) and subracting \(2rs\), we get that \(r^2+s^2=100\)

 Mar 27, 2023

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