Question 1191950: Find the values of a, b, and c for which the quadratic equation has the solutions 9i and -9i.
(Hint: Use the zero-product property in reverse.)
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Find the values of a, b, and c for which the quadratic equation has the solutions 9i and -9i.
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(x - 9i)*(x + 9i) = x^2 + 81
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a = 1, b = 0, c = 81
or,
a = k, b = 0, c = 81k where k = a constant.
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