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Old January 4th, 2009, 02:51 PM
magentarita magentarita is offline
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Default Roots of Quadratic Equation

Which term describes the roots of the equation
2x^2 + 3x - 1 = 0?
(1) rational (3) equal
(2) irrational (4) imaginary


I guessed choice (2) and was right but I still do not know what makes the roots irrational in this case.
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