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# Help! Not sure!

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Find the sum of the squares of the solutions of $x^2-13x+4=0$.

Dec 15, 2020

$$x = {13 \pm \sqrt{13^2-4(1)(4)} \over 2(1)}$$     to find    x =  13/2   +- 3/2  sqrt 17       Then square the roots and add them together.... to get 81.