Question 171708
What type of solution do you get for quadratic equations where D < 0? 
It does not have Real Number solutions; it has complex number solutions.
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Give reasons for your answer. 
If b^2 - 4ac < 0 the sqrt is a complex number
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Also provide an example of such a quadratic equation and find the solution of the equation
x^2 + 5x + 10 = 0
x = [-5 +- sqrt(25-4*10)]/2
x = [-5 +- sqrt(-15)]/2
x = [-5 +-isqrt(15)]/2
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Cheers,
Stan H.