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Solution - Quadratic equations

x=(10-sqrt(84))/-8=5/-4+1/4sqrt(21)=-0.104
x=(10-sqrt(84))/-8=5/-4+1/4sqrt(21)=-0.104
x=(10+sqrt(84))/-8=5/-4-1/4sqrt(21)=-2.396
x=(10+sqrt(84))/-8=5/-4-1/4sqrt(21)=-2.396

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