SOLUTION: In dealing with quadratic equations, how do we determine wheather the solutions are real or complex?
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Question 149386
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In dealing with quadratic equations, how do we determine wheather the solutions are real or complex?
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scott8148(6628)
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the value of the discriminant (b^2-4ac) indicates the nature of the roots
(b^2-4ac)>0 __ 2 real roots
(b^2-4ac)=0 __ 1 real root __ actually a double root; two roots with the same value
(b^2-4ac)<0 __ 2 complex roots