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Quadratic Equations

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notes

`ax^2 + bx + c = 0` with real coefficients a, b, c and a ≠ 0. Also, let us assume that the  
`b^2 – 4ac < 0.`
`x= [-b ± sqrt (b^2- 4ac)]/(2a)= [-b ± sqrt (4ac- b^2 i)]/(2a)`
“A polynomial equation has at least one root.” 
“A polynomial equation of degree n has n roots.”

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