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Magic of Discriminant

Algebra Level 3

Consider $x^2 + bx + c = 0$ such that $b^2 - 4c +3=0$ . If $r$ and $s$ are the roots of $x^2 + bx + c = 0$ , find $(r-s)(s-r)$ .

7 -7 -3 3

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by Paul Ryan Longhas

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