13. Determine the values of c for which x^2 + 2cx - 4 will have exactly 2 real roots.
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Originally Posted by rlarach 13. Determine the values of c for which x^2 + 2cx - 4 will have exactly 2 real roots. Apply the following: For the quadratic the discriminant is defined to be . The quadratic has 2 real roots . The quadratic has 1 (repeated) root. The quadratic has no real roots. Do not confuse the c in your question with the C in the above formulae.
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