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Suppose that 2x^(2) - 5x + k = 0 is a quadratic equation with one solution for x. Express k as a common fraction.

 Apr 7, 2020
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2x^2  - 5x  +  k  =   0

 

If  this has one solution then the discriminant  = 0

 

So

 

(-5)^2  - 4 (2) k   = 0

 

25  - 8k  = 0

 

25  =  8k

 

25/8  = k

 

 

cool cool cool

 Apr 7, 2020

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