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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 r2+s2=100

 Mar 27, 2023

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