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Find the constant k such that the quadratic \(2x^2+11x+k\) has a double root.

 Feb 16, 2024
 #1
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To have a double root, the discriminant must  =  0

 

So

 

11^2  - 4(2)k  = 0

 

121 - 8k  =  0

 

121  = 8k

 

k = 121 /  8

 

 

 

cool cool cool

 Feb 16, 2024

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