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The quadratic x^2 + bx + 16 = 0 has a double root.  Find all possible values of b.

 Jul 23, 2021

Best Answer 

 #1
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For this to occur, the discriminant of the Quadratic Formula must = 0

 

b^2 - 4 ac = 0

b^2 - 4 ( 1)( 16) = 0

b^2 = 64

b = +- 8

 Jul 23, 2021
 #1
avatar+34386 
+2
Best Answer

For this to occur, the discriminant of the Quadratic Formula must = 0

 

b^2 - 4 ac = 0

b^2 - 4 ( 1)( 16) = 0

b^2 = 64

b = +- 8

ElectricPavlov Jul 23, 2021

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