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For what values of the constant b does the equation 3x^2+bx+27 = 0 have a double root

 Jan 15, 2022
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Discriminat of the Quadratic Formula must  = 0 for this to be true

 

b^2 - 4ac = 0

b^2 - 4 ( 3)(27) = 0

b^2 = 324

b = +- 18

 Jan 15, 2022

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